Annotation of nsdl/harvestsmete/cstc.xml, revision 1.1

1.1     ! www         1: <?xml version="1.0" encoding="UTF-8"?>
        !             2: 
        !             3: <ListRecords xmlns="http://www.openarchives.org/OAI/1.1/OAI_ListRecords" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/1.1/OAI_ListRecords http://www.openarchives.org/OAI/1.1/OAI_ListRecords.xsd">
        !             4: 
        !             5: <responseDate>2001-10-29T17:02:00-05:00</responseDate>
        !             6: <requestURL>http://www.cstc.org:80/cgi-bin/OAI/CSTC.pl?verb=ListRecords&amp;metadataPrefix=oai_ims</requestURL>
        !             7: 
        !             8: <record>
        !             9: <header>
        !            10: <identifier>oai:CSTC:60</identifier>
        !            11: <datestamp>1999-06-20</datestamp>
        !            12: </header>
        !            13: <metadata>
        !            14: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !            15:    <general>
        !            16:       <title>Number System Conversion Tool</title>
        !            17:       <catalogentry>
        !            18:          <catalogue>CSTC</catalogue>
        !            19:          <entry>60</entry>
        !            20:       </catalogentry>
        !            21:       <language>English</language>
        !            22:       <description> This tool uses JavaScript to implement a number system conversion tool that can be used to teach the concepts of different number systems as part of an introductory math or computer science course. Users can convert numbers from decimal to another base, and from other bases to decimal, and the conversion process is explained.
        !            23: There is also a quiz feature which allows students to test their ability to convert numbers on their own.</description>
        !            24:       <keywords>number system</keywords>
        !            25:       <keywords>binary</keywords>
        !            26:       <keywords>decimal</keywords>
        !            27:       <keywords>hexadecimal</keywords>
        !            28:    </general>
        !            29:    <lifecycle>
        !            30:       <status>Final</status>
        !            31:       <contribute>
        !            32:          <role>Author</role>
        !            33:          <entity>
        !            34: BEGIN:vCard
        !            35: FN:Chaya Gurwitz
        !            36: N:Gurwitz;Chaya
        !            37: EMAIL;INTERNET:gurwitz@sci.brooklyn.cuny.edu
        !            38: END:vCard
        !            39: </entity>
        !            40:          <date datetype="datetime">
        !            41:          1999-06-20
        !            42:          </date>
        !            43:       </contribute>
        !            44:    </lifecycle>
        !            45:    <metametadata>
        !            46:       <contribute>
        !            47:          <role>Contributor</role>
        !            48:          <entity>
        !            49: BEGIN:vCard
        !            50: FN:Chaya Gurwitz
        !            51: N:Gurwitz;Chaya
        !            52: EMAIL;INTERNET:gurwitz@sci.brooklyn.cuny.edu
        !            53: ORG:Brooklyn College;Computer and Information Science
        !            54: END:vCard
        !            55: </entity>
        !            56:          <date datetype="datetime">
        !            57:          1999-06-20
        !            58:          </date>
        !            59:       </contribute>
        !            60:       <language>en-US</language>
        !            61:    </metametadata>
        !            62:    <technical>
        !            63:       <format>text/html</format>
        !            64:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=60</location>
        !            65:       <requirements>
        !            66:          <type>Platform</type>
        !            67:          <name>HTML Browser</name>
        !            68:       </requirements>
        !            69:    </technical>
        !            70:    <educational>
        !            71:       <intendedenduserrole>Learner</intendedenduserrole>
        !            72:       <intendedenduserrole>Teacher</intendedenduserrole>
        !            73:       <learningcontext>Higher Education</learningcontext>
        !            74:       <learningcontext>Secondary Education</learningcontext>
        !            75:    </educational>
        !            76:    <classification>
        !            77:       <purpose>Educational Objective</purpose>
        !            78:       <taxonpath>
        !            79:          <source>ACM Computer Science Curriculum</source>
        !            80:          <taxon>
        !            81:             <entry>Numerical and Symbolic Computation</entry>
        !            82:          </taxon>
        !            83:       </taxonpath>
        !            84:       <description>The type of class that this resource is best suited for</description>
        !            85:    </classification>
        !            86:    <classification>
        !            87:       <purpose>Discipline</purpose>
        !            88:       <taxonpath>
        !            89:          <source>ACM Computing Classification System</source>
        !            90:          <taxon>
        !            91:             <entry>General Literature</entry>
        !            92:          </taxon>
        !            93:          <taxon>
        !            94:             <entry>General</entry>
        !            95:          </taxon>
        !            96:       </taxonpath>
        !            97:       <description>The subject classification that best describes the resource</description>
        !            98:    </classification>
        !            99:    <classification>
        !           100:       <purpose>Discipline</purpose>
        !           101:       <taxonpath>
        !           102:          <source>ACM Computing Classification System</source>
        !           103:          <taxon>
        !           104:             <entry>Hardware</entry>
        !           105:          </taxon>
        !           106:          <taxon>
        !           107:             <entry>General</entry>
        !           108:          </taxon>
        !           109:       </taxonpath>
        !           110:       <description>The subject classification that best describes the resource</description>
        !           111:    </classification>
        !           112: </oai_ims>
        !           113: </metadata>
        !           114: </record>
        !           115: <record>
        !           116: <header>
        !           117: <identifier>oai:CSTC:4</identifier>
        !           118: <datestamp>2001-09-06</datestamp>
        !           119: </header>
        !           120: <metadata>
        !           121: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !           122:    <general>
        !           123:       <title>HSU CIS 492 - Project for a Senior-level Team Database Programming Course (a CIS senior capstone course)</title>
        !           124:       <catalogentry>
        !           125:          <catalogue>CSTC</catalogue>
        !           126:          <entry>4</entry>
        !           127:       </catalogentry>
        !           128:       <language>English</language>
        !           129:       <description> This is a senior project for a senior-level Computer Information Systems capstone course. It is a team project, writing a large database project using Oracle.</description>
        !           130:       <keywords>team programming project</keywords>
        !           131:       <keywords>database programming project</keywords>
        !           132:       <keywords>software engineering</keywords>
        !           133:       <keywords>senior capstone course project</keywords>
        !           134:    </general>
        !           135:    <lifecycle>
        !           136:       <status>Final</status>
        !           137:       <contribute>
        !           138:          <role>Author</role>
        !           139:          <entity>
        !           140: BEGIN:vCard
        !           141: FN:Sharon Tuttle
        !           142: N:Tuttle;Sharon
        !           143: EMAIL;INTERNET:st10@axe.humboldt.edu
        !           144: END:vCard
        !           145: </entity>
        !           146:          <date datetype="datetime">
        !           147:          2001-09-06
        !           148:          </date>
        !           149:       </contribute>
        !           150:    </lifecycle>
        !           151:    <metametadata>
        !           152:       <contribute>
        !           153:          <role>Contributor</role>
        !           154:          <entity>
        !           155: BEGIN:vCard
        !           156: FN:Sharon Tuttle
        !           157: N:Tuttle;Sharon
        !           158: EMAIL;INTERNET:st10@axe.humboldt.edu
        !           159: ORG:Humboldt State University;Computing Science
        !           160: END:vCard
        !           161: </entity>
        !           162:          <date datetype="datetime">
        !           163:          2001-09-06
        !           164:          </date>
        !           165:       </contribute>
        !           166:       <language>en-US</language>
        !           167:    </metametadata>
        !           168:    <technical>
        !           169:       <format>text/html</format>
        !           170:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=4</location>
        !           171:    </technical>
        !           172:    <educational>
        !           173:       <intendedenduserrole>Learner</intendedenduserrole>
        !           174:       <intendedenduserrole>Teacher</intendedenduserrole>
        !           175:       <learningcontext>Higher Education</learningcontext>
        !           176:       <learningcontext>Secondary Education</learningcontext>
        !           177:    </educational>
        !           178:    <classification>
        !           179:       <purpose>Educational Objective</purpose>
        !           180:       <taxonpath>
        !           181:          <source>ACM Computer Science Curriculum</source>
        !           182:          <taxon>
        !           183:             <entry>Database and Information Retrieval</entry>
        !           184:          </taxon>
        !           185:       </taxonpath>
        !           186:       <description>The type of class that this resource is best suited for</description>
        !           187:    </classification>
        !           188:    <classification>
        !           189:       <purpose>Educational Objective</purpose>
        !           190:       <taxonpath>
        !           191:          <source>ACM Computer Science Curriculum</source>
        !           192:          <taxon>
        !           193:             <entry>Software Methodology and Engineering</entry>
        !           194:          </taxon>
        !           195:       </taxonpath>
        !           196:       <description>The type of class that this resource is best suited for</description>
        !           197:    </classification>
        !           198:    <classification>
        !           199:       <purpose>Discipline</purpose>
        !           200:       <taxonpath>
        !           201:          <source>ACM Computing Classification System</source>
        !           202:          <taxon>
        !           203:             <entry>Software</entry>
        !           204:          </taxon>
        !           205:          <taxon>
        !           206:             <entry>Software Engineering</entry>
        !           207:          </taxon>
        !           208:       </taxonpath>
        !           209:       <description>The subject classification that best describes the resource</description>
        !           210:    </classification>
        !           211:    <classification>
        !           212:       <purpose>Discipline</purpose>
        !           213:       <taxonpath>
        !           214:          <source>ACM Computing Classification System</source>
        !           215:          <taxon>
        !           216:             <entry>Software</entry>
        !           217:          </taxon>
        !           218:          <taxon>
        !           219:             <entry>Miscellaneous</entry>
        !           220:          </taxon>
        !           221:       </taxonpath>
        !           222:       <description>The subject classification that best describes the resource</description>
        !           223:    </classification>
        !           224:    <classification>
        !           225:       <purpose>Discipline</purpose>
        !           226:       <taxonpath>
        !           227:          <source>ACM Computing Classification System</source>
        !           228:          <taxon>
        !           229:             <entry>Information Systems</entry>
        !           230:          </taxon>
        !           231:          <taxon>
        !           232:             <entry>Miscellaneous</entry>
        !           233:          </taxon>
        !           234:       </taxonpath>
        !           235:       <description>The subject classification that best describes the resource</description>
        !           236:    </classification>
        !           237: </oai_ims>
        !           238: </metadata>
        !           239: </record>
        !           240: <record>
        !           241: <header>
        !           242: <identifier>oai:CSTC:158</identifier>
        !           243: <datestamp>2001-08-21</datestamp>
        !           244: </header>
        !           245: <metadata>
        !           246: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !           247:    <general>
        !           248:       <title>Reusability and adaptability of interactive resources in web-based educational</title>
        !           249:       <catalogentry>
        !           250:          <catalogue>CSTC</catalogue>
        !           251:          <entry>158</entry>
        !           252:       </catalogentry>
        !           253:       <language>English</language>
        !           254:       <description> The production of interactive multimedia content is in most cases an expensive task in terms of time and cost. Hence, optimizing production by exploiting the reusability of interactive multimedia elements is mandatory. Reusability can be triggered by a combination of resuable multimedia components and the appropriate use of metadata to control the components as well as their combination.
        !           255: In this article, we discuss the reusability aspects of interactive multimedia content in web-based learning systems. In contrast to existing approaches, we extend a component-based architecture to build interactive multimedia visualization units with the use of metadata for reusability and customizability.
        !           256: In the three-tier model, the lowest layer of the paradigm corresponds to the programmer (code reusability). The user interface of an educational visualization is located at the top layer where the interaction with the end-user (student) takes place. The educator is located between the top and the bottom layers. This medium layer allows adapting interactive multimedia content according to the needs of the user, applying a predefined set of metadata. The teacher can both adjust the level of explanation and the level of interactivity of an animation, and influence the presentation and the results of the algorithms being illustrated (program reusability). After a theoretical overview, we explain our architecture by giving an example of an application.</description>
        !           257:       <keywords>Design</keywords>
        !           258:       <keywords>Theory</keywords>
        !           259:    </general>
        !           260:    <lifecycle>
        !           261:       <status>Final</status>
        !           262:       <contribute>
        !           263:          <role>Author</role>
        !           264:          <entity>
        !           265: BEGIN:vCard
        !           266: FN:Abdulmotaleb El Saddik
        !           267: N:El Saddik;Abdulmotaleb
        !           268: EMAIL;INTERNET:-
        !           269: END:vCard
        !           270: </entity>
        !           271:          <date datetype="datetime">
        !           272:          2001-08-21
        !           273:          </date>
        !           274:       </contribute>
        !           275:       <contribute>
        !           276:          <role>Author</role>
        !           277:          <entity>
        !           278: BEGIN:vCard
        !           279: FN:Stephan Fischer
        !           280: N:Fischer;Stephan
        !           281: EMAIL;INTERNET:-
        !           282: END:vCard
        !           283: </entity>
        !           284:          <date datetype="datetime">
        !           285:          2001-08-21
        !           286:          </date>
        !           287:       </contribute>
        !           288:       <contribute>
        !           289:          <role>Author</role>
        !           290:          <entity>
        !           291: BEGIN:vCard
        !           292: FN:Ralf Steinmetz
        !           293: N:Steinmetz;Ralf
        !           294: EMAIL;INTERNET:-
        !           295: END:vCard
        !           296: </entity>
        !           297:          <date datetype="datetime">
        !           298:          2001-08-21
        !           299:          </date>
        !           300:       </contribute>
        !           301:    </lifecycle>
        !           302:    <metametadata>
        !           303:       <contribute>
        !           304:          <role>Contributor</role>
        !           305:          <entity>
        !           306: BEGIN:vCard
        !           307: FN:Hussein Suleman
        !           308: N:Suleman;Hussein
        !           309: EMAIL;INTERNET:hussein@vt.edu
        !           310: ORG:;
        !           311: END:vCard
        !           312: </entity>
        !           313:          <date datetype="datetime">
        !           314:          2001-08-21
        !           315:          </date>
        !           316:       </contribute>
        !           317:       <language>en-US</language>
        !           318:    </metametadata>
        !           319:    <technical>
        !           320:       <format>text/html</format>
        !           321:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=158</location>
        !           322:    </technical>
        !           323:    <educational>
        !           324:       <intendedenduserrole>Learner</intendedenduserrole>
        !           325:       <intendedenduserrole>Teacher</intendedenduserrole>
        !           326:       <learningcontext>Higher Education</learningcontext>
        !           327:       <learningcontext>Secondary Education</learningcontext>
        !           328:    </educational>
        !           329:    <classification>
        !           330:       <purpose>Educational Objective</purpose>
        !           331:       <taxonpath>
        !           332:          <source>ACM Computer Science Curriculum</source>
        !           333:          <taxon>
        !           334:             <entry>Software Methodology and Engineering</entry>
        !           335:          </taxon>
        !           336:       </taxonpath>
        !           337:       <description>The type of class that this resource is best suited for</description>
        !           338:    </classification>
        !           339:    <classification>
        !           340:       <purpose>Discipline</purpose>
        !           341:       <taxonpath>
        !           342:          <source>ACM Computing Classification System</source>
        !           343:          <taxon>
        !           344:             <entry>Information Systems</entry>
        !           345:          </taxon>
        !           346:          <taxon>
        !           347:             <entry>Information Interfaces and Presentation</entry>
        !           348:          </taxon>
        !           349:       </taxonpath>
        !           350:       <description>The subject classification that best describes the resource</description>
        !           351:    </classification>
        !           352:    <classification>
        !           353:       <purpose>Discipline</purpose>
        !           354:       <taxonpath>
        !           355:          <source>ACM Computing Classification System</source>
        !           356:          <taxon>
        !           357:             <entry>Computing Milieux</entry>
        !           358:          </taxon>
        !           359:          <taxon>
        !           360:             <entry>Computers and Education</entry>
        !           361:          </taxon>
        !           362:       </taxonpath>
        !           363:       <description>The subject classification that best describes the resource</description>
        !           364:    </classification>
        !           365: </oai_ims>
        !           366: </metadata>
        !           367: </record>
        !           368: <record>
        !           369: <header>
        !           370: <identifier>oai:CSTC:103</identifier>
        !           371: <datestamp>2001-09-06</datestamp>
        !           372: </header>
        !           373: <metadata>
        !           374: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !           375:    <general>
        !           376:       <title>Turing Machine Applet</title>
        !           377:       <catalogentry>
        !           378:          <catalogue>CSTC</catalogue>
        !           379:          <entry>103</entry>
        !           380:       </catalogentry>
        !           381:       <description> The following Java applet animates a Turing Machine that can add or multiply numbers. The animation shows the flow of events in the calculation (the writing and reading of symbols on an endless tape) and the decision rules used to process each step in the calculation.</description>
        !           382:       <keywords>turing</keywords>
        !           383:       <keywords>machine</keywords>
        !           384:       <keywords>addition</keywords>
        !           385:       <keywords>multiplication</keywords>
        !           386:    </general>
        !           387:    <lifecycle>
        !           388:       <status>Final</status>
        !           389:       <contribute>
        !           390:          <role>Author</role>
        !           391:          <entity>
        !           392: BEGIN:vCard
        !           393: FN:Alan Sommerer
        !           394: N:Sommerer;Alan
        !           395: EMAIL;INTERNET:forrest@warthman.com
        !           396: END:vCard
        !           397: </entity>
        !           398:          <date datetype="datetime">
        !           399:          2001-09-06
        !           400:          </date>
        !           401:       </contribute>
        !           402:       <contribute>
        !           403:          <role>Author</role>
        !           404:          <entity>
        !           405: BEGIN:vCard
        !           406: FN:Forrest Warthman
        !           407: N:Warthman;Forrest
        !           408: EMAIL;INTERNET:forrest@warthman.com
        !           409: END:vCard
        !           410: </entity>
        !           411:          <date datetype="datetime">
        !           412:          2001-09-06
        !           413:          </date>
        !           414:       </contribute>
        !           415:    </lifecycle>
        !           416:    <metametadata>
        !           417:       <contribute>
        !           418:          <role>Contributor</role>
        !           419:          <entity>
        !           420: BEGIN:vCard
        !           421: FN:Vikram Narula
        !           422: N:Narula;Vikram
        !           423: EMAIL;INTERNET:vnarula@vt.edu
        !           424: ORG:Virginia Tech;CS
        !           425: END:vCard
        !           426: </entity>
        !           427:          <date datetype="datetime">
        !           428:          2001-09-06
        !           429:          </date>
        !           430:       </contribute>
        !           431:       <language>en-US</language>
        !           432:    </metametadata>
        !           433:    <technical>
        !           434:       <format>text/html</format>
        !           435:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=103</location>
        !           436:    </technical>
        !           437:    <educational>
        !           438:       <intendedenduserrole>Learner</intendedenduserrole>
        !           439:       <intendedenduserrole>Teacher</intendedenduserrole>
        !           440:       <learningcontext>Higher Education</learningcontext>
        !           441:       <learningcontext>Secondary Education</learningcontext>
        !           442:    </educational>
        !           443:    <rights>
        !           444:       <copyrightandotherrestrictions>yes</copyrightandotherrestrictions>
        !           445:       <description>Copyright &#169; 1996-2001 Warthman Associates. All rights reserved.</description>
        !           446:    </rights>
        !           447:    <classification>
        !           448:       <purpose>Educational Objective</purpose>
        !           449:       <taxonpath>
        !           450:          <source>ACM Computer Science Curriculum</source>
        !           451:          <taxon>
        !           452:             <entry>Numerical and Symbolic Computation</entry>
        !           453:          </taxon>
        !           454:       </taxonpath>
        !           455:       <description>The type of class that this resource is best suited for</description>
        !           456:    </classification>
        !           457:    <classification>
        !           458:       <purpose>Discipline</purpose>
        !           459:       <taxonpath>
        !           460:          <source>ACM Computing Classification System</source>
        !           461:          <taxon>
        !           462:             <entry>Theory of Computation</entry>
        !           463:          </taxon>
        !           464:          <taxon>
        !           465:             <entry>Computation by Abstract Devices</entry>
        !           466:          </taxon>
        !           467:       </taxonpath>
        !           468:       <description>The subject classification that best describes the resource</description>
        !           469:    </classification>
        !           470: </oai_ims>
        !           471: </metadata>
        !           472: </record>
        !           473: <record>
        !           474: <header>
        !           475: <identifier>oai:CSTC:52</identifier>
        !           476: <datestamp>2001-08-21</datestamp>
        !           477: </header>
        !           478: <metadata>
        !           479: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !           480:    <general>
        !           481:       <title>Sparse Matrix - A Case Study in Layered Abstraction</title>
        !           482:       <catalogentry>
        !           483:          <catalogue>CSTC</catalogue>
        !           484:          <entry>52</entry>
        !           485:       </catalogentry>
        !           486:       <language>English</language>
        !           487:       <description> In the described laboratory assignment, the mechanism of the sparse matrix
        !           488: is an array (row index) of linked lists storing only the nonzero values
        !           489: within a row, together with the column index of the saved element. The
        !           490: educational goals of the described lab are to (1) gain appreciation of,
        !           491: and experience with, a layered approach to the implementation of a
        !           492: relatively complex structure; (2) stress the distinction and separation
        !           493: between the public interface (as seen by the client, or user of a class)
        !           494: and the implementation; and (3) stress the importance of designing a
        !           495: clear, complete, and intuitive public interface to a class.</description>
        !           496:       <keywords>data structures</keywords>
        !           497:       <keywords>abstraction</keywords>
        !           498:       <keywords>sparse matrix</keywords>
        !           499:    </general>
        !           500:    <lifecycle>
        !           501:       <status>Final</status>
        !           502:       <contribute>
        !           503:          <role>Author</role>
        !           504:          <entity>
        !           505: BEGIN:vCard
        !           506: FN:Thomas Hain
        !           507: N:Hain;Thomas
        !           508: EMAIL;INTERNET:HAIN@go.cis.usouthal.edu
        !           509: END:vCard
        !           510: </entity>
        !           511:          <date datetype="datetime">
        !           512:          2001-08-21
        !           513:          </date>
        !           514:       </contribute>
        !           515:    </lifecycle>
        !           516:    <metametadata>
        !           517:       <contribute>
        !           518:          <role>Contributor</role>
        !           519:          <entity>
        !           520: BEGIN:vCard
        !           521: FN:Thomas Hain
        !           522: N:Hain;Thomas
        !           523: EMAIL;INTERNET:HAIN@go.cis.usouthal.edu
        !           524: ORG:University of South Alabama;School of Computer &amp; Info Sciences
        !           525: END:vCard
        !           526: </entity>
        !           527:          <date datetype="datetime">
        !           528:          2001-08-21
        !           529:          </date>
        !           530:       </contribute>
        !           531:       <language>en-US</language>
        !           532:    </metametadata>
        !           533:    <technical>
        !           534:       <format>text/html</format>
        !           535:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=52</location>
        !           536:       <requirements>
        !           537:          <type>Platform</type>
        !           538:       </requirements>
        !           539:       <requirements>
        !           540:          <type>Programming Language</type>
        !           541:          <name>C++</name>
        !           542:       </requirements>
        !           543:    </technical>
        !           544:    <educational>
        !           545:       <intendedenduserrole>Learner</intendedenduserrole>
        !           546:       <intendedenduserrole>Teacher</intendedenduserrole>
        !           547:       <learningcontext>Higher Education</learningcontext>
        !           548:       <learningcontext>Secondary Education</learningcontext>
        !           549:    </educational>
        !           550:    <classification>
        !           551:       <purpose>Educational Objective</purpose>
        !           552:       <taxonpath>
        !           553:          <source>ACM Computer Science Curriculum</source>
        !           554:          <taxon>
        !           555:             <entry>Algorithms and Data Structures</entry>
        !           556:          </taxon>
        !           557:       </taxonpath>
        !           558:       <description>The type of class that this resource is best suited for</description>
        !           559:    </classification>
        !           560:    <classification>
        !           561:       <purpose>Educational Objective</purpose>
        !           562:       <taxonpath>
        !           563:          <source>ACM Computer Science Curriculum</source>
        !           564:          <taxon>
        !           565:             <entry>Software Methodology and Engineering</entry>
        !           566:          </taxon>
        !           567:       </taxonpath>
        !           568:       <description>The type of class that this resource is best suited for</description>
        !           569:    </classification>
        !           570:    <classification>
        !           571:       <purpose>Discipline</purpose>
        !           572:       <taxonpath>
        !           573:          <source>ACM Computing Classification System</source>
        !           574:          <taxon>
        !           575:             <entry>Software</entry>
        !           576:          </taxon>
        !           577:          <taxon>
        !           578:             <entry>General</entry>
        !           579:          </taxon>
        !           580:       </taxonpath>
        !           581:       <description>The subject classification that best describes the resource</description>
        !           582:    </classification>
        !           583:    <classification>
        !           584:       <purpose>Discipline</purpose>
        !           585:       <taxonpath>
        !           586:          <source>ACM Computing Classification System</source>
        !           587:          <taxon>
        !           588:             <entry>Software</entry>
        !           589:          </taxon>
        !           590:          <taxon>
        !           591:             <entry>Programming Techniques</entry>
        !           592:          </taxon>
        !           593:       </taxonpath>
        !           594:       <description>The subject classification that best describes the resource</description>
        !           595:    </classification>
        !           596: </oai_ims>
        !           597: </metadata>
        !           598: </record>
        !           599: <record>
        !           600: <header>
        !           601: <identifier>oai:CSTC:65</identifier>
        !           602: <datestamp>2001-09-06</datestamp>
        !           603: </header>
        !           604: <metadata>
        !           605: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !           606:    <general>
        !           607:       <title>Interactive Data Structure Visualizations</title>
        !           608:       <catalogentry>
        !           609:          <catalogue>CSTC</catalogue>
        !           610:          <entry>65</entry>
        !           611:       </catalogentry>
        !           612:       <language>English</language>
        !           613:       <description> The interactive data structures visualizations are courseware lessons designed to accompany a CS-2 data structures course. The topics include binary trees, graphs, and sorting. The courseware is interactive and allows the student to watch animations and the replicate the steps of the algorithm.</description>
        !           614:       <keywords>data structures</keywords>
        !           615:       <keywords>visualizations</keywords>
        !           616:       <keywords>interactive</keywords>
        !           617:       <keywords>binary trees</keywords>
        !           618:       <keywords>graphs</keywords>
        !           619:       <keywords></keywords>
        !           620:       <keywords>sorting</keywords>
        !           621:    </general>
        !           622:    <lifecycle>
        !           623:       <status>Final</status>
        !           624:       <contribute>
        !           625:          <role>Author</role>
        !           626:          <entity>
        !           627: BEGIN:vCard
        !           628: FN:Duane Jarc
        !           629: N:Jarc;Duane
        !           630: EMAIL;INTERNET:jarc@seas.gwu.edu
        !           631: END:vCard
        !           632: </entity>
        !           633:          <date datetype="datetime">
        !           634:          2001-09-06
        !           635:          </date>
        !           636:       </contribute>
        !           637:    </lifecycle>
        !           638:    <metametadata>
        !           639:       <contribute>
        !           640:          <role>Contributor</role>
        !           641:          <entity>
        !           642: BEGIN:vCard
        !           643: FN:Duane Jarc
        !           644: N:Jarc;Duane
        !           645: EMAIL;INTERNET:jarc@seas.gwu.edu
        !           646: ORG:The George Washington University;Computer Science
        !           647: END:vCard
        !           648: </entity>
        !           649:          <date datetype="datetime">
        !           650:          2001-09-06
        !           651:          </date>
        !           652:       </contribute>
        !           653:       <language>en-US</language>
        !           654:    </metametadata>
        !           655:    <technical>
        !           656:       <format>text/html</format>
        !           657:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=65</location>
        !           658:       <requirements>
        !           659:          <type>Platform</type>
        !           660:          <name>Java Virtual Machine</name>
        !           661:       </requirements>
        !           662:       <requirements>
        !           663:          <type>Operating System</type>
        !           664:          <name>Mac OS, OS/2, UNIX, Windows 3.1, Windows 95/98, Windows NT</name>
        !           665:       </requirements>
        !           666:       <requirements>
        !           667:          <type>Programming Language</type>
        !           668:          <name>Ada 95</name>
        !           669:       </requirements>
        !           670:    </technical>
        !           671:    <educational>
        !           672:       <intendedenduserrole>Learner</intendedenduserrole>
        !           673:       <intendedenduserrole>Teacher</intendedenduserrole>
        !           674:       <learningcontext>Higher Education</learningcontext>
        !           675:       <learningcontext>Secondary Education</learningcontext>
        !           676:    </educational>
        !           677:    <classification>
        !           678:       <purpose>Educational Objective</purpose>
        !           679:       <taxonpath>
        !           680:          <source>ACM Computer Science Curriculum</source>
        !           681:          <taxon>
        !           682:             <entry>Algorithms and Data Structures</entry>
        !           683:          </taxon>
        !           684:       </taxonpath>
        !           685:       <description>The type of class that this resource is best suited for</description>
        !           686:    </classification>
        !           687:    <classification>
        !           688:       <purpose>Discipline</purpose>
        !           689:       <taxonpath>
        !           690:          <source>ACM Computing Classification System</source>
        !           691:          <taxon>
        !           692:             <entry>Data</entry>
        !           693:          </taxon>
        !           694:          <taxon>
        !           695:             <entry>Data Structures</entry>
        !           696:          </taxon>
        !           697:       </taxonpath>
        !           698:       <description>The subject classification that best describes the resource</description>
        !           699:    </classification>
        !           700: </oai_ims>
        !           701: </metadata>
        !           702: </record>
        !           703: <record>
        !           704: <header>
        !           705: <identifier>oai:CSTC:32</identifier>
        !           706: <datestamp>1999-05-06</datestamp>
        !           707: </header>
        !           708: <metadata>
        !           709: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !           710:    <general>
        !           711:       <title>Moti's Distributed Algorithms in Java</title>
        !           712:       <catalogentry>
        !           713:          <catalogue>CSTC</catalogue>
        !           714:          <entry>32</entry>
        !           715:       </catalogentry>
        !           716:       <description> These Java applets are used for studying distributed algorithms. They presume familiarity with distributed algorithms. The applets are not simple animations where you passively watch the algorithm. Instead, they are interactive, visual, study aids for studying distributed algorithms.</description>
        !           717:       <keywords>distributed algorithms</keywords>
        !           718:       <keywords>byzantine generals</keywords>
        !           719:       <keywords>mutual exclusion</keywords>
        !           720:    </general>
        !           721:    <lifecycle>
        !           722:       <status>Final</status>
        !           723:       <contribute>
        !           724:          <role>Author</role>
        !           725:          <entity>
        !           726: BEGIN:vCard
        !           727: FN:Mordechai Ben-Ari
        !           728: N:Ben-Ari;Mordechai
        !           729: EMAIL;INTERNET:ntbenari@wis.weizmann.ac.il
        !           730: END:vCard
        !           731: </entity>
        !           732:          <date datetype="datetime">
        !           733:          1999-05-06
        !           734:          </date>
        !           735:       </contribute>
        !           736:    </lifecycle>
        !           737:    <metametadata>
        !           738:       <contribute>
        !           739:          <role>Contributor</role>
        !           740:          <entity>
        !           741: BEGIN:vCard
        !           742: FN:Mordechai Ben-Ari
        !           743: N:Ben-Ari;Mordechai
        !           744: EMAIL;INTERNET:ntbenari@wis.weizmann.ac.il
        !           745: ORG:;
        !           746: END:vCard
        !           747: </entity>
        !           748:          <date datetype="datetime">
        !           749:          1999-05-06
        !           750:          </date>
        !           751:       </contribute>
        !           752:       <language>en-US</language>
        !           753:    </metametadata>
        !           754:    <technical>
        !           755:       <format>text/html</format>
        !           756:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=32</location>
        !           757:       <requirements>
        !           758:          <type>Platform</type>
        !           759:          <name>Java Virtual Machine</name>
        !           760:       </requirements>
        !           761:       <requirements>
        !           762:          <type>Operating System</type>
        !           763:       </requirements>
        !           764:       <requirements>
        !           765:          <type>Programming Language</type>
        !           766:          <name>Java</name>
        !           767:       </requirements>
        !           768:    </technical>
        !           769:    <educational>
        !           770:       <intendedenduserrole>Learner</intendedenduserrole>
        !           771:       <intendedenduserrole>Teacher</intendedenduserrole>
        !           772:       <learningcontext>Higher Education</learningcontext>
        !           773:       <learningcontext>Secondary Education</learningcontext>
        !           774:    </educational>
        !           775:    <classification>
        !           776:       <purpose>Educational Objective</purpose>
        !           777:       <taxonpath>
        !           778:          <source>ACM Computer Science Curriculum</source>
        !           779:          <taxon>
        !           780:             <entry>Operating Systems</entry>
        !           781:          </taxon>
        !           782:       </taxonpath>
        !           783:       <description>The type of class that this resource is best suited for</description>
        !           784:    </classification>
        !           785:    <classification>
        !           786:       <purpose>Educational Objective</purpose>
        !           787:       <taxonpath>
        !           788:          <source>ACM Computer Science Curriculum</source>
        !           789:          <taxon>
        !           790:             <entry>Algorithms and Data Structures</entry>
        !           791:          </taxon>
        !           792:       </taxonpath>
        !           793:       <description>The type of class that this resource is best suited for</description>
        !           794:    </classification>
        !           795:    <classification>
        !           796:       <purpose>Discipline</purpose>
        !           797:       <taxonpath>
        !           798:          <source>ACM Computing Classification System</source>
        !           799:          <taxon>
        !           800:             <entry>Software</entry>
        !           801:          </taxon>
        !           802:          <taxon>
        !           803:             <entry>General</entry>
        !           804:          </taxon>
        !           805:       </taxonpath>
        !           806:       <description>The subject classification that best describes the resource</description>
        !           807:    </classification>
        !           808:    <classification>
        !           809:       <purpose>Discipline</purpose>
        !           810:       <taxonpath>
        !           811:          <source>ACM Computing Classification System</source>
        !           812:          <taxon>
        !           813:             <entry>Computer Systems Organization</entry>
        !           814:          </taxon>
        !           815:          <taxon>
        !           816:             <entry>Computer-Communication Networks</entry>
        !           817:          </taxon>
        !           818:       </taxonpath>
        !           819:       <description>The subject classification that best describes the resource</description>
        !           820:    </classification>
        !           821: </oai_ims>
        !           822: </metadata>
        !           823: </record>
        !           824: <record>
        !           825: <header>
        !           826: <identifier>oai:CSTC:51</identifier>
        !           827: <datestamp>2001-09-06</datestamp>
        !           828: </header>
        !           829: <metadata>
        !           830: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !           831:    <general>
        !           832:       <title>Self-Study Digital Library Courseware</title>
        !           833:       <catalogentry>
        !           834:          <catalogue>CSTC</catalogue>
        !           835:          <entry>51</entry>
        !           836:       </catalogentry>
        !           837:       <language>English</language>
        !           838:       <description> This is freely available tutorial information about the field of digital libraries. See http://ei.cs.vt.edu/~dlib for
        !           839: more information.</description>
        !           840:       <keywords>electronic</keywords>
        !           841:    </general>
        !           842:    <lifecycle>
        !           843:       <status>Final</status>
        !           844:       <contribute>
        !           845:          <role>Author</role>
        !           846:          <entity>
        !           847: BEGIN:vCard
        !           848: FN:Edward Fox
        !           849: N:Fox;Edward
        !           850: EMAIL;INTERNET:fox@vt.edu
        !           851: END:vCard
        !           852: </entity>
        !           853:          <date datetype="datetime">
        !           854:          2001-09-06
        !           855:          </date>
        !           856:       </contribute>
        !           857:    </lifecycle>
        !           858:    <metametadata>
        !           859:       <contribute>
        !           860:          <role>Contributor</role>
        !           861:          <entity>
        !           862: BEGIN:vCard
        !           863: FN:Edward Fox
        !           864: N:Fox;Edward
        !           865: EMAIL;INTERNET:fox@vt.edu
        !           866: ORG:Virginia Tech;Computer Science
        !           867: END:vCard
        !           868: </entity>
        !           869:          <date datetype="datetime">
        !           870:          2001-09-06
        !           871:          </date>
        !           872:       </contribute>
        !           873:       <language>en-US</language>
        !           874:    </metametadata>
        !           875:    <technical>
        !           876:       <format>text/html</format>
        !           877:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=51</location>
        !           878:    </technical>
        !           879:    <educational>
        !           880:       <intendedenduserrole>Learner</intendedenduserrole>
        !           881:       <intendedenduserrole>Teacher</intendedenduserrole>
        !           882:       <learningcontext>Higher Education</learningcontext>
        !           883:       <learningcontext>Secondary Education</learningcontext>
        !           884:    </educational>
        !           885:    <classification>
        !           886:       <purpose>Educational Objective</purpose>
        !           887:       <taxonpath>
        !           888:          <source>ACM Computer Science Curriculum</source>
        !           889:          <taxon>
        !           890:             <entry>Human-Computer Communication</entry>
        !           891:          </taxon>
        !           892:       </taxonpath>
        !           893:       <description>The type of class that this resource is best suited for</description>
        !           894:    </classification>
        !           895:    <classification>
        !           896:       <purpose>Discipline</purpose>
        !           897:       <taxonpath>
        !           898:          <source>ACM Computing Classification System</source>
        !           899:          <taxon>
        !           900:             <entry>Information Systems</entry>
        !           901:          </taxon>
        !           902:          <taxon>
        !           903:             <entry>Information Systems Applications</entry>
        !           904:          </taxon>
        !           905:       </taxonpath>
        !           906:       <description>The subject classification that best describes the resource</description>
        !           907:    </classification>
        !           908:    <classification>
        !           909:       <purpose>Discipline</purpose>
        !           910:       <taxonpath>
        !           911:          <source>ACM Computing Classification System</source>
        !           912:          <taxon>
        !           913:             <entry>Information Systems</entry>
        !           914:          </taxon>
        !           915:          <taxon>
        !           916:             <entry>Information Storage and Retrieval</entry>
        !           917:          </taxon>
        !           918:       </taxonpath>
        !           919:       <description>The subject classification that best describes the resource</description>
        !           920:    </classification>
        !           921:    <classification>
        !           922:       <purpose>Discipline</purpose>
        !           923:       <taxonpath>
        !           924:          <source>ACM Computing Classification System</source>
        !           925:          <taxon>
        !           926:             <entry>Information Systems</entry>
        !           927:          </taxon>
        !           928:          <taxon>
        !           929:             <entry>Database Management</entry>
        !           930:          </taxon>
        !           931:       </taxonpath>
        !           932:       <description>The subject classification that best describes the resource</description>
        !           933:    </classification>
        !           934: </oai_ims>
        !           935: </metadata>
        !           936: </record>
        !           937: <record>
        !           938: <header>
        !           939: <identifier>oai:CSTC:53</identifier>
        !           940: <datestamp>2001-08-21</datestamp>
        !           941: </header>
        !           942: <metadata>
        !           943: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !           944:    <general>
        !           945:       <title>Creating and Using a Class in C++</title>
        !           946:       <catalogentry>
        !           947:          <catalogue>CSTC</catalogue>
        !           948:          <entry>53</entry>
        !           949:       </catalogentry>
        !           950:       <language>English</language>
        !           951:       <description> This lab introduces students to the use of classes in C++.
        !           952: By the end of the lab, students will know how to declare a class,
        !           953: how to define member functions, and how to test member functions.
        !           954: This lab involves a C++ console program. It was developed to run
        !           955: on a PC using Microsoft Visual C++ 5.0, but any C++ compiler
        !           956: will work. The lab can be completed in one class session, about
        !           957: 75 minutes.</description>
        !           958:       <keywords>C++ programming</keywords>
        !           959:       <keywords>introduction to classes</keywords>
        !           960:    </general>
        !           961:    <lifecycle>
        !           962:       <status>Final</status>
        !           963:       <contribute>
        !           964:          <role>Author</role>
        !           965:          <entity>
        !           966: BEGIN:vCard
        !           967: FN:Eugenia Fernandez
        !           968: N:Fernandez;Eugenia
        !           969: EMAIL;INTERNET:fernande@engr.iupui.edu
        !           970: END:vCard
        !           971: </entity>
        !           972:          <date datetype="datetime">
        !           973:          2001-08-21
        !           974:          </date>
        !           975:       </contribute>
        !           976:    </lifecycle>
        !           977:    <metametadata>
        !           978:       <contribute>
        !           979:          <role>Contributor</role>
        !           980:          <entity>
        !           981: BEGIN:vCard
        !           982: FN:Eugenia Fernandez
        !           983: N:Fernandez;Eugenia
        !           984: EMAIL;INTERNET:fernande@engr.iupui.edu
        !           985: ORG:Indiana University Perdue University Indianapolis (IUPUI);Purdue School of Engineering and Technology
        !           986: END:vCard
        !           987: </entity>
        !           988:          <date datetype="datetime">
        !           989:          2001-08-21
        !           990:          </date>
        !           991:       </contribute>
        !           992:       <language>en-US</language>
        !           993:    </metametadata>
        !           994:    <technical>
        !           995:       <format>text/html</format>
        !           996:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=53</location>
        !           997:       <requirements>
        !           998:          <type>Programming Language</type>
        !           999:          <name>C++</name>
        !          1000:       </requirements>
        !          1001:    </technical>
        !          1002:    <educational>
        !          1003:       <intendedenduserrole>Learner</intendedenduserrole>
        !          1004:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          1005:       <learningcontext>Higher Education</learningcontext>
        !          1006:       <learningcontext>Secondary Education</learningcontext>
        !          1007:    </educational>
        !          1008:    <classification>
        !          1009:       <purpose>Educational Objective</purpose>
        !          1010:       <taxonpath>
        !          1011:          <source>ACM Computer Science Curriculum</source>
        !          1012:          <taxon>
        !          1013:             <entry>Programming Languages</entry>
        !          1014:          </taxon>
        !          1015:       </taxonpath>
        !          1016:       <description>The type of class that this resource is best suited for</description>
        !          1017:    </classification>
        !          1018:    <classification>
        !          1019:       <purpose>Discipline</purpose>
        !          1020:       <taxonpath>
        !          1021:          <source>ACM Computing Classification System</source>
        !          1022:          <taxon>
        !          1023:             <entry>Software</entry>
        !          1024:          </taxon>
        !          1025:          <taxon>
        !          1026:             <entry>General</entry>
        !          1027:          </taxon>
        !          1028:       </taxonpath>
        !          1029:       <description>The subject classification that best describes the resource</description>
        !          1030:    </classification>
        !          1031:    <classification>
        !          1032:       <purpose>Discipline</purpose>
        !          1033:       <taxonpath>
        !          1034:          <source>ACM Computing Classification System</source>
        !          1035:          <taxon>
        !          1036:             <entry>Software</entry>
        !          1037:          </taxon>
        !          1038:          <taxon>
        !          1039:             <entry>Programming Languages</entry>
        !          1040:          </taxon>
        !          1041:       </taxonpath>
        !          1042:       <description>The subject classification that best describes the resource</description>
        !          1043:    </classification>
        !          1044: </oai_ims>
        !          1045: </metadata>
        !          1046: </record>
        !          1047: <record>
        !          1048: <header>
        !          1049: <identifier>oai:CSTC:57</identifier>
        !          1050: <datestamp>1999-05-29</datestamp>
        !          1051: </header>
        !          1052: <metadata>
        !          1053: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          1054:    <general>
        !          1055:       <title>CS294-1 Fall 1998 Syllabus</title>
        !          1056:       <catalogentry>
        !          1057:          <catalogue>CSTC</catalogue>
        !          1058:          <entry>57</entry>
        !          1059:       </catalogentry>
        !          1060:       <language>English</language>
        !          1061:       <description> This syllabus describes a course covering multimedia system architecture and development issues</description>
        !          1062:       <keywords>syllabus</keywords>
        !          1063:       <keywords>multimedia</keywords>
        !          1064:       <keywords>hypermedia</keywords>
        !          1065:       <keywords>audio</keywords>
        !          1066:       <keywords>video</keywords>
        !          1067:       <keywords>web</keywords>
        !          1068:       <keywords>Internet</keywords>
        !          1069:    </general>
        !          1070:    <lifecycle>
        !          1071:       <status>Final</status>
        !          1072:       <contribute>
        !          1073:          <role>Author</role>
        !          1074:          <entity>
        !          1075: BEGIN:vCard
        !          1076: FN:Lawrence Rowe
        !          1077: N:Rowe;Lawrence
        !          1078: EMAIL;INTERNET:longam@bellsouth.net
        !          1079: END:vCard
        !          1080: </entity>
        !          1081:          <date datetype="datetime">
        !          1082:          1999-05-29
        !          1083:          </date>
        !          1084:       </contribute>
        !          1085:    </lifecycle>
        !          1086:    <metametadata>
        !          1087:       <contribute>
        !          1088:          <role>Contributor</role>
        !          1089:          <entity>
        !          1090: BEGIN:vCard
        !          1091: FN:Lawrence Rowe
        !          1092: N:Rowe;Lawrence
        !          1093: EMAIL;INTERNET:longam@bellsouth.net
        !          1094: ORG:Univ. of California, Berkeley;Computer Science Div -- EECS
        !          1095: END:vCard
        !          1096: </entity>
        !          1097:          <date datetype="datetime">
        !          1098:          1999-05-29
        !          1099:          </date>
        !          1100:       </contribute>
        !          1101:       <language>en-US</language>
        !          1102:    </metametadata>
        !          1103:    <technical>
        !          1104:       <format>text/html</format>
        !          1105:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=57</location>
        !          1106:       <requirements>
        !          1107:          <type>Platform</type>
        !          1108:          <name>HTML Browser</name>
        !          1109:       </requirements>
        !          1110:       <requirements>
        !          1111:          <type>Operating System</type>
        !          1112:          <name>Windows CE, Windows NT, Windows 95/98, Windows 3.1, UNIX, OS/2, Mac OS</name>
        !          1113:       </requirements>
        !          1114:       <requirements>
        !          1115:          <type>Programming Language</type>
        !          1116:          <name>HTML</name>
        !          1117:       </requirements>
        !          1118:    </technical>
        !          1119:    <educational>
        !          1120:       <intendedenduserrole>Learner</intendedenduserrole>
        !          1121:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          1122:       <learningcontext>Higher Education</learningcontext>
        !          1123:       <learningcontext>Secondary Education</learningcontext>
        !          1124:    </educational>
        !          1125:    <classification>
        !          1126:       <purpose>Educational Objective</purpose>
        !          1127:       <taxonpath>
        !          1128:          <source>ACM Computer Science Curriculum</source>
        !          1129:          <taxon>
        !          1130:             <entry>Software Methodology and Engineering</entry>
        !          1131:          </taxon>
        !          1132:       </taxonpath>
        !          1133:       <description>The type of class that this resource is best suited for</description>
        !          1134:    </classification>
        !          1135:    <classification>
        !          1136:       <purpose>Educational Objective</purpose>
        !          1137:       <taxonpath>
        !          1138:          <source>ACM Computer Science Curriculum</source>
        !          1139:          <taxon>
        !          1140:             <entry>Human-Computer Communication</entry>
        !          1141:          </taxon>
        !          1142:       </taxonpath>
        !          1143:       <description>The type of class that this resource is best suited for</description>
        !          1144:    </classification>
        !          1145:    <classification>
        !          1146:       <purpose>Educational Objective</purpose>
        !          1147:       <taxonpath>
        !          1148:          <source>ACM Computer Science Curriculum</source>
        !          1149:          <taxon>
        !          1150:             <entry>Architecture Methods</entry>
        !          1151:          </taxon>
        !          1152:       </taxonpath>
        !          1153:       <description>The type of class that this resource is best suited for</description>
        !          1154:    </classification>
        !          1155:    <classification>
        !          1156:       <purpose>Discipline</purpose>
        !          1157:       <taxonpath>
        !          1158:          <source>ACM Computing Classification System</source>
        !          1159:          <taxon>
        !          1160:             <entry>Computer Applications</entry>
        !          1161:          </taxon>
        !          1162:          <taxon>
        !          1163:             <entry>Miscellaneous</entry>
        !          1164:          </taxon>
        !          1165:       </taxonpath>
        !          1166:       <description>The subject classification that best describes the resource</description>
        !          1167:    </classification>
        !          1168: </oai_ims>
        !          1169: </metadata>
        !          1170: </record>
        !          1171: <record>
        !          1172: <header>
        !          1173: <identifier>oai:CSTC:58</identifier>
        !          1174: <datestamp>1999-05-29</datestamp>
        !          1175: </header>
        !          1176: <metadata>
        !          1177: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          1178:    <general>
        !          1179:       <title>CS294-1 Fall 1998 Reading List</title>
        !          1180:       <catalogentry>
        !          1181:          <catalogue>CSTC</catalogue>
        !          1182:          <entry>58</entry>
        !          1183:       </catalogentry>
        !          1184:       <language>English</language>
        !          1185:       <description> This reading list pertains to a multimedia course covering system architecture and development issues</description>
        !          1186:       <keywords>Reading</keywords>
        !          1187:       <keywords>multimedia</keywords>
        !          1188:    </general>
        !          1189:    <lifecycle>
        !          1190:       <status>Final</status>
        !          1191:       <contribute>
        !          1192:          <role>Author</role>
        !          1193:          <entity>
        !          1194: BEGIN:vCard
        !          1195: FN:Lawrence Rowe
        !          1196: N:Rowe;Lawrence
        !          1197: EMAIL;INTERNET:longam@bellsouth.net
        !          1198: END:vCard
        !          1199: </entity>
        !          1200:          <date datetype="datetime">
        !          1201:          1999-05-29
        !          1202:          </date>
        !          1203:       </contribute>
        !          1204:    </lifecycle>
        !          1205:    <metametadata>
        !          1206:       <contribute>
        !          1207:          <role>Contributor</role>
        !          1208:          <entity>
        !          1209: BEGIN:vCard
        !          1210: FN:Lawrence Rowe
        !          1211: N:Rowe;Lawrence
        !          1212: EMAIL;INTERNET:longam@bellsouth.net
        !          1213: ORG:Univ. of California, Berkeley;Computer Science Div -- EECS
        !          1214: END:vCard
        !          1215: </entity>
        !          1216:          <date datetype="datetime">
        !          1217:          1999-05-29
        !          1218:          </date>
        !          1219:       </contribute>
        !          1220:       <language>en-US</language>
        !          1221:    </metametadata>
        !          1222:    <technical>
        !          1223:       <format>text/html</format>
        !          1224:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=58</location>
        !          1225:       <requirements>
        !          1226:          <type>Platform</type>
        !          1227:          <name>HTML Browser</name>
        !          1228:       </requirements>
        !          1229:       <requirements>
        !          1230:          <type>Operating System</type>
        !          1231:          <name>Windows CE, Windows NT, Windows 95/98, Windows 3.1, UNIX, OS/2, Mac OS</name>
        !          1232:       </requirements>
        !          1233:       <requirements>
        !          1234:          <type>Programming Language</type>
        !          1235:          <name>HTML</name>
        !          1236:       </requirements>
        !          1237:    </technical>
        !          1238:    <educational>
        !          1239:       <intendedenduserrole>Learner</intendedenduserrole>
        !          1240:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          1241:       <learningcontext>Higher Education</learningcontext>
        !          1242:       <learningcontext>Secondary Education</learningcontext>
        !          1243:    </educational>
        !          1244:    <classification>
        !          1245:       <purpose>Educational Objective</purpose>
        !          1246:       <taxonpath>
        !          1247:          <source>ACM Computer Science Curriculum</source>
        !          1248:          <taxon>
        !          1249:             <entry>Software Methodology and Engineering</entry>
        !          1250:          </taxon>
        !          1251:       </taxonpath>
        !          1252:       <description>The type of class that this resource is best suited for</description>
        !          1253:    </classification>
        !          1254:    <classification>
        !          1255:       <purpose>Educational Objective</purpose>
        !          1256:       <taxonpath>
        !          1257:          <source>ACM Computer Science Curriculum</source>
        !          1258:          <taxon>
        !          1259:             <entry>Human-Computer Communication</entry>
        !          1260:          </taxon>
        !          1261:       </taxonpath>
        !          1262:       <description>The type of class that this resource is best suited for</description>
        !          1263:    </classification>
        !          1264:    <classification>
        !          1265:       <purpose>Educational Objective</purpose>
        !          1266:       <taxonpath>
        !          1267:          <source>ACM Computer Science Curriculum</source>
        !          1268:          <taxon>
        !          1269:             <entry>Architecture Methods</entry>
        !          1270:          </taxon>
        !          1271:       </taxonpath>
        !          1272:       <description>The type of class that this resource is best suited for</description>
        !          1273:    </classification>
        !          1274:    <classification>
        !          1275:       <purpose>Discipline</purpose>
        !          1276:       <taxonpath>
        !          1277:          <source>ACM Computing Classification System</source>
        !          1278:          <taxon>
        !          1279:             <entry>Computer Applications</entry>
        !          1280:          </taxon>
        !          1281:          <taxon>
        !          1282:             <entry>Miscellaneous</entry>
        !          1283:          </taxon>
        !          1284:       </taxonpath>
        !          1285:       <description>The subject classification that best describes the resource</description>
        !          1286:    </classification>
        !          1287: </oai_ims>
        !          1288: </metadata>
        !          1289: </record>
        !          1290: <record>
        !          1291: <header>
        !          1292: <identifier>oai:CSTC:59</identifier>
        !          1293: <datestamp>1999-05-29</datestamp>
        !          1294: </header>
        !          1295: <metadata>
        !          1296: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          1297:    <general>
        !          1298:       <title>CSC 475 Fall 1998 Syllabus</title>
        !          1299:       <catalogentry>
        !          1300:          <catalogue>CSTC</catalogue>
        !          1301:          <entry>59</entry>
        !          1302:       </catalogentry>
        !          1303:       <language>English</language>
        !          1304:       <description> This syllabus describes a course covering networked multimedia issues, with an emphasis on the Internet</description>
        !          1305:       <keywords>Syllabus</keywords>
        !          1306:       <keywords>multimedia</keywords>
        !          1307:       <keywords>network</keywords>
        !          1308:       <keywords>Internet</keywords>
        !          1309:       <keywords>Web</keywords>
        !          1310:    </general>
        !          1311:    <lifecycle>
        !          1312:       <status>Final</status>
        !          1313:       <contribute>
        !          1314:          <role>Author</role>
        !          1315:          <entity>
        !          1316: BEGIN:vCard
        !          1317: FN:Ronald Vetter
        !          1318: N:Vetter;Ronald
        !          1319: EMAIL;INTERNET:longam@bellsouth.net
        !          1320: END:vCard
        !          1321: </entity>
        !          1322:          <date datetype="datetime">
        !          1323:          1999-05-29
        !          1324:          </date>
        !          1325:       </contribute>
        !          1326:    </lifecycle>
        !          1327:    <metametadata>
        !          1328:       <contribute>
        !          1329:          <role>Contributor</role>
        !          1330:          <entity>
        !          1331: BEGIN:vCard
        !          1332: FN:Ronald Vetter
        !          1333: N:Vetter;Ronald
        !          1334: EMAIL;INTERNET:longam@bellsouth.net
        !          1335: ORG:Univ. of North Carolina Wilmington;Computer Science Dept.
        !          1336: END:vCard
        !          1337: </entity>
        !          1338:          <date datetype="datetime">
        !          1339:          1999-05-29
        !          1340:          </date>
        !          1341:       </contribute>
        !          1342:       <language>en-US</language>
        !          1343:    </metametadata>
        !          1344:    <technical>
        !          1345:       <format>text/html</format>
        !          1346:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=59</location>
        !          1347:       <requirements>
        !          1348:          <type>Platform</type>
        !          1349:          <name>HTML Browser</name>
        !          1350:       </requirements>
        !          1351:       <requirements>
        !          1352:          <type>Operating System</type>
        !          1353:          <name>Windows CE, Windows NT, Windows 95/98, Windows 3.1, UNIX, OS/2, Mac OS</name>
        !          1354:       </requirements>
        !          1355:       <requirements>
        !          1356:          <type>Programming Language</type>
        !          1357:          <name>HTML</name>
        !          1358:       </requirements>
        !          1359:    </technical>
        !          1360:    <educational>
        !          1361:       <intendedenduserrole>Learner</intendedenduserrole>
        !          1362:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          1363:       <learningcontext>Higher Education</learningcontext>
        !          1364:       <learningcontext>Secondary Education</learningcontext>
        !          1365:    </educational>
        !          1366:    <classification>
        !          1367:       <purpose>Educational Objective</purpose>
        !          1368:       <taxonpath>
        !          1369:          <source>ACM Computer Science Curriculum</source>
        !          1370:          <taxon>
        !          1371:             <entry>Software Methodology and Engineering</entry>
        !          1372:          </taxon>
        !          1373:       </taxonpath>
        !          1374:       <description>The type of class that this resource is best suited for</description>
        !          1375:    </classification>
        !          1376:    <classification>
        !          1377:       <purpose>Educational Objective</purpose>
        !          1378:       <taxonpath>
        !          1379:          <source>ACM Computer Science Curriculum</source>
        !          1380:          <taxon>
        !          1381:             <entry>Human-Computer Communication</entry>
        !          1382:          </taxon>
        !          1383:       </taxonpath>
        !          1384:       <description>The type of class that this resource is best suited for</description>
        !          1385:    </classification>
        !          1386:    <classification>
        !          1387:       <purpose>Educational Objective</purpose>
        !          1388:       <taxonpath>
        !          1389:          <source>ACM Computer Science Curriculum</source>
        !          1390:          <taxon>
        !          1391:             <entry>Architecture Methods</entry>
        !          1392:          </taxon>
        !          1393:       </taxonpath>
        !          1394:       <description>The type of class that this resource is best suited for</description>
        !          1395:    </classification>
        !          1396:    <classification>
        !          1397:       <purpose>Discipline</purpose>
        !          1398:       <taxonpath>
        !          1399:          <source>ACM Computing Classification System</source>
        !          1400:          <taxon>
        !          1401:             <entry>Computing Methodologies</entry>
        !          1402:          </taxon>
        !          1403:          <taxon>
        !          1404:             <entry>Miscellaneous</entry>
        !          1405:          </taxon>
        !          1406:       </taxonpath>
        !          1407:       <description>The subject classification that best describes the resource</description>
        !          1408:    </classification>
        !          1409: </oai_ims>
        !          1410: </metadata>
        !          1411: </record>
        !          1412: <record>
        !          1413: <header>
        !          1414: <identifier>oai:CSTC:104</identifier>
        !          1415: <datestamp>2001-09-06</datestamp>
        !          1416: </header>
        !          1417: <metadata>
        !          1418: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          1419:    <general>
        !          1420:       <title>Rotating Cube Applet Performance Test</title>
        !          1421:       <catalogentry>
        !          1422:          <catalogue>CSTC</catalogue>
        !          1423:          <entry>104</entry>
        !          1424:       </catalogentry>
        !          1425:       <description> The following Java applet animates the three-dimensional rotation of a cube. While doing so, it rates your computer system's performance: the lower-right corner displays the percentage of the programmed cube-redraw rate that your system actually supports.</description>
        !          1426:       <keywords>applet</keywords>
        !          1427:       <keywords>performance</keywords>
        !          1428:       <keywords>test</keywords>
        !          1429:       <keywords>system</keywords>
        !          1430:    </general>
        !          1431:    <lifecycle>
        !          1432:       <status>Final</status>
        !          1433:       <contribute>
        !          1434:          <role>Author</role>
        !          1435:          <entity>
        !          1436: BEGIN:vCard
        !          1437: FN:Forrest Warthman
        !          1438: N:Warthman;Forrest
        !          1439: EMAIL;INTERNET:forrest@warthman.com
        !          1440: END:vCard
        !          1441: </entity>
        !          1442:          <date datetype="datetime">
        !          1443:          2001-09-06
        !          1444:          </date>
        !          1445:       </contribute>
        !          1446:    </lifecycle>
        !          1447:    <metametadata>
        !          1448:       <contribute>
        !          1449:          <role>Contributor</role>
        !          1450:          <entity>
        !          1451: BEGIN:vCard
        !          1452: FN:Vikram Narula
        !          1453: N:Narula;Vikram
        !          1454: EMAIL;INTERNET:vnarula@vt.edu
        !          1455: ORG:Virginia Tech;CS
        !          1456: END:vCard
        !          1457: </entity>
        !          1458:          <date datetype="datetime">
        !          1459:          2001-09-06
        !          1460:          </date>
        !          1461:       </contribute>
        !          1462:       <language>en-US</language>
        !          1463:    </metametadata>
        !          1464:    <technical>
        !          1465:       <format>text/html</format>
        !          1466:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=104</location>
        !          1467:    </technical>
        !          1468:    <educational>
        !          1469:       <intendedenduserrole>Learner</intendedenduserrole>
        !          1470:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          1471:       <learningcontext>Higher Education</learningcontext>
        !          1472:       <learningcontext>Secondary Education</learningcontext>
        !          1473:    </educational>
        !          1474:    <rights>
        !          1475:       <copyrightandotherrestrictions>yes</copyrightandotherrestrictions>
        !          1476:       <description>Copyright &#169; 1996-2001 Warthman Associates. All rights reserved.</description>
        !          1477:    </rights>
        !          1478:    <classification>
        !          1479:       <purpose>Educational Objective</purpose>
        !          1480:       <taxonpath>
        !          1481:          <source>ACM Computer Science Curriculum</source>
        !          1482:          <taxon>
        !          1483:             <entry>Numerical and Symbolic Computation</entry>
        !          1484:          </taxon>
        !          1485:       </taxonpath>
        !          1486:       <description>The type of class that this resource is best suited for</description>
        !          1487:    </classification>
        !          1488:    <classification>
        !          1489:       <purpose>Discipline</purpose>
        !          1490:       <taxonpath>
        !          1491:          <source>ACM Computing Classification System</source>
        !          1492:          <taxon>
        !          1493:             <entry>Computer Systems Organization</entry>
        !          1494:          </taxon>
        !          1495:          <taxon>
        !          1496:             <entry>Performance of Systems</entry>
        !          1497:          </taxon>
        !          1498:       </taxonpath>
        !          1499:       <description>The subject classification that best describes the resource</description>
        !          1500:    </classification>
        !          1501: </oai_ims>
        !          1502: </metadata>
        !          1503: </record>
        !          1504: <record>
        !          1505: <header>
        !          1506: <identifier>oai:CSTC:47</identifier>
        !          1507: <datestamp>1999-05-13</datestamp>
        !          1508: </header>
        !          1509: <metadata>
        !          1510: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          1511:    <general>
        !          1512:       <title>Applets for teaching computer graphics concepts</title>
        !          1513:       <catalogentry>
        !          1514:          <catalogue>CSTC</catalogue>
        !          1515:          <entry>47</entry>
        !          1516:       </catalogentry>
        !          1517:       <language>English</language>
        !          1518:       <description> These java applets allow students to explore bezier curves, 2D transformation operations, ligting models, and 3D viewing operations.</description>
        !          1519:       <keywords>bezier curves</keywords>
        !          1520:       <keywords>transformations</keywords>
        !          1521:       <keywords>lighting model</keywords>
        !          1522:       <keywords>computer graphics</keywords>
        !          1523:    </general>
        !          1524:    <lifecycle>
        !          1525:       <status>Final</status>
        !          1526:       <contribute>
        !          1527:          <role>Author</role>
        !          1528:          <entity>
        !          1529: BEGIN:vCard
        !          1530: FN:Patrick Min
        !          1531: N:Min;Patrick
        !          1532: EMAIL;INTERNET:min@princeton.edu
        !          1533: END:vCard
        !          1534: </entity>
        !          1535:          <date datetype="datetime">
        !          1536:          1999-05-13
        !          1537:          </date>
        !          1538:       </contribute>
        !          1539:    </lifecycle>
        !          1540:    <metametadata>
        !          1541:       <contribute>
        !          1542:          <role>Contributor</role>
        !          1543:          <entity>
        !          1544: BEGIN:vCard
        !          1545: FN:Patrick Min
        !          1546: N:Min;Patrick
        !          1547: EMAIL;INTERNET:min@princeton.edu
        !          1548: ORG:Princeton University;
        !          1549: END:vCard
        !          1550: </entity>
        !          1551:          <date datetype="datetime">
        !          1552:          1999-05-13
        !          1553:          </date>
        !          1554:       </contribute>
        !          1555:       <language>en-US</language>
        !          1556:    </metametadata>
        !          1557:    <technical>
        !          1558:       <format>text/html</format>
        !          1559:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=47</location>
        !          1560:       <requirements>
        !          1561:          <type>Platform</type>
        !          1562:          <name>Java Virtual Machine</name>
        !          1563:       </requirements>
        !          1564:       <requirements>
        !          1565:          <type>Operating System</type>
        !          1566:       </requirements>
        !          1567:       <requirements>
        !          1568:          <type>Programming Language</type>
        !          1569:          <name>Java</name>
        !          1570:       </requirements>
        !          1571:    </technical>
        !          1572:    <educational>
        !          1573:       <intendedenduserrole>Learner</intendedenduserrole>
        !          1574:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          1575:       <learningcontext>Higher Education</learningcontext>
        !          1576:       <learningcontext>Secondary Education</learningcontext>
        !          1577:    </educational>
        !          1578:    <classification>
        !          1579:       <purpose>Educational Objective</purpose>
        !          1580:       <taxonpath>
        !          1581:          <source>ACM Computer Science Curriculum</source>
        !          1582:          <taxon>
        !          1583:             <entry>Human-Computer Communication</entry>
        !          1584:          </taxon>
        !          1585:       </taxonpath>
        !          1586:       <description>The type of class that this resource is best suited for</description>
        !          1587:    </classification>
        !          1588:    <classification>
        !          1589:       <purpose>Discipline</purpose>
        !          1590:       <taxonpath>
        !          1591:          <source>ACM Computing Classification System</source>
        !          1592:          <taxon>
        !          1593:             <entry>Computing Methodologies</entry>
        !          1594:          </taxon>
        !          1595:          <taxon>
        !          1596:             <entry>Computer Graphics</entry>
        !          1597:          </taxon>
        !          1598:       </taxonpath>
        !          1599:       <description>The subject classification that best describes the resource</description>
        !          1600:    </classification>
        !          1601: </oai_ims>
        !          1602: </metadata>
        !          1603: </record>
        !          1604: <record>
        !          1605: <header>
        !          1606: <identifier>oai:CSTC:46</identifier>
        !          1607: <datestamp>1999-05-12</datestamp>
        !          1608: </header>
        !          1609: <metadata>
        !          1610: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          1611:    <general>
        !          1612:       <title>An Investigation of Disk Scheduling Algorithms</title>
        !          1613:       <catalogentry>
        !          1614:          <catalogue>CSTC</catalogue>
        !          1615:          <entry>46</entry>
        !          1616:       </catalogentry>
        !          1617:       <language>English</language>
        !          1618:       <description> Students study a program that simulates disk scheduling algorithms and answer questions about it. Students run the program, collect results, graph the results, and answer questions about the algorithms. The two algorithms used are FCFS and SSTF.</description>
        !          1619:       <keywords>disk scheduling</keywords>
        !          1620:       <keywords>operating systems</keywords>
        !          1621:    </general>
        !          1622:    <lifecycle>
        !          1623:       <status>Final</status>
        !          1624:       <contribute>
        !          1625:          <role>Author</role>
        !          1626:          <entity>
        !          1627: BEGIN:vCard
        !          1628: FN:Daniel Joyce
        !          1629: N:Joyce;Daniel
        !          1630: EMAIL;INTERNET:joyce@vill.edu
        !          1631: END:vCard
        !          1632: </entity>
        !          1633:          <date datetype="datetime">
        !          1634:          1999-05-12
        !          1635:          </date>
        !          1636:       </contribute>
        !          1637:    </lifecycle>
        !          1638:    <metametadata>
        !          1639:       <contribute>
        !          1640:          <role>Contributor</role>
        !          1641:          <entity>
        !          1642: BEGIN:vCard
        !          1643: FN:Daniel Joyce
        !          1644: N:Joyce;Daniel
        !          1645: EMAIL;INTERNET:joyce@vill.edu
        !          1646: ORG:Villinova University;
        !          1647: END:vCard
        !          1648: </entity>
        !          1649:          <date datetype="datetime">
        !          1650:          1999-05-12
        !          1651:          </date>
        !          1652:       </contribute>
        !          1653:       <language>en-US</language>
        !          1654:    </metametadata>
        !          1655:    <technical>
        !          1656:       <format>text/html</format>
        !          1657:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=46</location>
        !          1658:       <requirements>
        !          1659:          <type>Programming Language</type>
        !          1660:          <name>Pascal</name>
        !          1661:       </requirements>
        !          1662:    </technical>
        !          1663:    <educational>
        !          1664:       <intendedenduserrole>Learner</intendedenduserrole>
        !          1665:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          1666:       <learningcontext>Higher Education</learningcontext>
        !          1667:       <learningcontext>Secondary Education</learningcontext>
        !          1668:    </educational>
        !          1669:    <classification>
        !          1670:       <purpose>Educational Objective</purpose>
        !          1671:       <taxonpath>
        !          1672:          <source>ACM Computer Science Curriculum</source>
        !          1673:          <taxon>
        !          1674:             <entry>Algorithms and Data Structures</entry>
        !          1675:          </taxon>
        !          1676:       </taxonpath>
        !          1677:       <description>The type of class that this resource is best suited for</description>
        !          1678:    </classification>
        !          1679:    <classification>
        !          1680:       <purpose>Discipline</purpose>
        !          1681:       <taxonpath>
        !          1682:          <source>ACM Computing Classification System</source>
        !          1683:          <taxon>
        !          1684:             <entry>Hardware</entry>
        !          1685:          </taxon>
        !          1686:          <taxon>
        !          1687:             <entry>Control Structures and Microprogramming</entry>
        !          1688:          </taxon>
        !          1689:       </taxonpath>
        !          1690:       <description>The subject classification that best describes the resource</description>
        !          1691:    </classification>
        !          1692: </oai_ims>
        !          1693: </metadata>
        !          1694: </record>
        !          1695: <record>
        !          1696: <header>
        !          1697: <identifier>oai:CSTC:72</identifier>
        !          1698: <datestamp>1999-09-22</datestamp>
        !          1699: </header>
        !          1700: <metadata>
        !          1701: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          1702:    <general>
        !          1703:       <title>JFLAP</title>
        !          1704:       <catalogentry>
        !          1705:          <catalogue>CSTC</catalogue>
        !          1706:          <entry>72</entry>
        !          1707:       </catalogentry>
        !          1708:       <language>English</language>
        !          1709:       <description> JFLAP is a package of graphical tools which can be used as an aid in learning the basic concepts of Formal Languages and Automata Theory. The 3.1 version of JFLAP is written in Java using JDK 1.2 and JDK 1.1.5 and contains several new features and bug fixes.
        !          1710: Using JFLAP, one should be able to design and simulate several variations of finite automata (FA), pushdown automata (PDA), one-tape Turing machines (TM) and two-tape Turing machines (TTM). The user draws the transition diagram of the desired automaton and, once the picture is complete, the user enters an input string and then "runs" the automaton, being able to view all the generated configurations. In addition, JFLAP can handle grammars(GRM) and regular expressions(REX).</description>
        !          1711:       <keywords>finite automata</keywords>
        !          1712:       <keywords>pushdown automata</keywords>
        !          1713:       <keywords></keywords>
        !          1714:       <keywords>formal langauges</keywords>
        !          1715:       <keywords>automata theory</keywords>
        !          1716:    </general>
        !          1717:    <lifecycle>
        !          1718:       <status>Final</status>
        !          1719:       <contribute>
        !          1720:          <role>Author</role>
        !          1721:          <entity>
        !          1722: BEGIN:vCard
        !          1723: FN:Susan Rodger
        !          1724: N:Rodger;Susan
        !          1725: EMAIL;INTERNET:rodger@cs.duke.edu
        !          1726: END:vCard
        !          1727: </entity>
        !          1728:          <date datetype="datetime">
        !          1729:          1999-09-22
        !          1730:          </date>
        !          1731:       </contribute>
        !          1732:    </lifecycle>
        !          1733:    <metametadata>
        !          1734:       <contribute>
        !          1735:          <role>Contributor</role>
        !          1736:          <entity>
        !          1737: BEGIN:vCard
        !          1738: FN:Susan Rodger
        !          1739: N:Rodger;Susan
        !          1740: EMAIL;INTERNET:rodger@cs.duke.edu
        !          1741: ORG:Duke University;Computer Science
        !          1742: END:vCard
        !          1743: </entity>
        !          1744:          <date datetype="datetime">
        !          1745:          1999-09-22
        !          1746:          </date>
        !          1747:       </contribute>
        !          1748:       <language>en-US</language>
        !          1749:    </metametadata>
        !          1750:    <technical>
        !          1751:       <format>text/html</format>
        !          1752:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=72</location>
        !          1753:       <requirements>
        !          1754:          <type>Platform</type>
        !          1755:          <name>Java Virtual Machine</name>
        !          1756:       </requirements>
        !          1757:       <requirements>
        !          1758:          <type>Operating System</type>
        !          1759:       </requirements>
        !          1760:       <requirements>
        !          1761:          <type>Programming Language</type>
        !          1762:          <name>Java</name>
        !          1763:       </requirements>
        !          1764:    </technical>
        !          1765:    <educational>
        !          1766:       <intendedenduserrole>Learner</intendedenduserrole>
        !          1767:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          1768:       <learningcontext>Higher Education</learningcontext>
        !          1769:       <learningcontext>Secondary Education</learningcontext>
        !          1770:    </educational>
        !          1771:    <classification>
        !          1772:       <purpose>Educational Objective</purpose>
        !          1773:       <taxonpath>
        !          1774:          <source>ACM Computer Science Curriculum</source>
        !          1775:          <taxon>
        !          1776:             <entry>Programming Languages</entry>
        !          1777:          </taxon>
        !          1778:       </taxonpath>
        !          1779:       <description>The type of class that this resource is best suited for</description>
        !          1780:    </classification>
        !          1781:    <classification>
        !          1782:       <purpose>Discipline</purpose>
        !          1783:       <taxonpath>
        !          1784:          <source>ACM Computing Classification System</source>
        !          1785:          <taxon>
        !          1786:             <entry>Theory of Computation</entry>
        !          1787:          </taxon>
        !          1788:          <taxon>
        !          1789:             <entry>General</entry>
        !          1790:          </taxon>
        !          1791:       </taxonpath>
        !          1792:       <description>The subject classification that best describes the resource</description>
        !          1793:    </classification>
        !          1794:    <classification>
        !          1795:       <purpose>Discipline</purpose>
        !          1796:       <taxonpath>
        !          1797:          <source>ACM Computing Classification System</source>
        !          1798:          <taxon>
        !          1799:             <entry>Software</entry>
        !          1800:          </taxon>
        !          1801:          <taxon>
        !          1802:             <entry>Programming Languages</entry>
        !          1803:          </taxon>
        !          1804:       </taxonpath>
        !          1805:       <description>The subject classification that best describes the resource</description>
        !          1806:    </classification>
        !          1807: </oai_ims>
        !          1808: </metadata>
        !          1809: </record>
        !          1810: <record>
        !          1811: <header>
        !          1812: <identifier>oai:CSTC:105</identifier>
        !          1813: <datestamp>2001-09-06</datestamp>
        !          1814: </header>
        !          1815: <metadata>
        !          1816: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          1817:    <general>
        !          1818:       <title>Pentium III and Pentium Pro Microprocessor</title>
        !          1819:       <catalogentry>
        !          1820:          <catalogue>CSTC</catalogue>
        !          1821:          <entry>105</entry>
        !          1822:       </catalogentry>
        !          1823:       <description> The following Java applet animates the hardware signal timing used in various bus operations by Pentium III and Pentium Pro microprocessors. Animation of signal timing has important advantages over conventional data-sheet timing diagrams</description>
        !          1824:       <keywords>pentium</keywords>
        !          1825:       <keywords>microprocessor</keywords>
        !          1826:       <keywords>hardware</keywords>
        !          1827:       <keywords>signal</keywords>
        !          1828:       <keywords>timing</keywords>
        !          1829:    </general>
        !          1830:    <lifecycle>
        !          1831:       <status>Final</status>
        !          1832:       <contribute>
        !          1833:          <role>Author</role>
        !          1834:          <entity>
        !          1835: BEGIN:vCard
        !          1836: FN:Forrest Warthman
        !          1837: N:Warthman;Forrest
        !          1838: EMAIL;INTERNET:forrest@warthman.com
        !          1839: END:vCard
        !          1840: </entity>
        !          1841:          <date datetype="datetime">
        !          1842:          2001-09-06
        !          1843:          </date>
        !          1844:       </contribute>
        !          1845:    </lifecycle>
        !          1846:    <metametadata>
        !          1847:       <contribute>
        !          1848:          <role>Contributor</role>
        !          1849:          <entity>
        !          1850: BEGIN:vCard
        !          1851: FN:Vikram Narula
        !          1852: N:Narula;Vikram
        !          1853: EMAIL;INTERNET:vnarula@vt.edu
        !          1854: ORG:Virginia Tech;CS
        !          1855: END:vCard
        !          1856: </entity>
        !          1857:          <date datetype="datetime">
        !          1858:          2001-09-06
        !          1859:          </date>
        !          1860:       </contribute>
        !          1861:       <language>en-US</language>
        !          1862:    </metametadata>
        !          1863:    <technical>
        !          1864:       <format>text/html</format>
        !          1865:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=105</location>
        !          1866:    </technical>
        !          1867:    <educational>
        !          1868:       <intendedenduserrole>Learner</intendedenduserrole>
        !          1869:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          1870:       <learningcontext>Higher Education</learningcontext>
        !          1871:       <learningcontext>Secondary Education</learningcontext>
        !          1872:    </educational>
        !          1873:    <rights>
        !          1874:       <copyrightandotherrestrictions>yes</copyrightandotherrestrictions>
        !          1875:       <description>Copyright &#169; 1996-2001 Warthman Associates. All rights reserved.</description>
        !          1876:    </rights>
        !          1877:    <classification>
        !          1878:       <purpose>Educational Objective</purpose>
        !          1879:       <taxonpath>
        !          1880:          <source>ACM Computer Science Curriculum</source>
        !          1881:          <taxon>
        !          1882:             <entry>Architecture Methods</entry>
        !          1883:          </taxon>
        !          1884:       </taxonpath>
        !          1885:       <description>The type of class that this resource is best suited for</description>
        !          1886:    </classification>
        !          1887:    <classification>
        !          1888:       <purpose>Discipline</purpose>
        !          1889:       <taxonpath>
        !          1890:          <source>ACM Computing Classification System</source>
        !          1891:          <taxon>
        !          1892:             <entry>Computer Systems Organization</entry>
        !          1893:          </taxon>
        !          1894:          <taxon>
        !          1895:             <entry>Processor Architectures</entry>
        !          1896:          </taxon>
        !          1897:       </taxonpath>
        !          1898:       <description>The subject classification that best describes the resource</description>
        !          1899:    </classification>
        !          1900: </oai_ims>
        !          1901: </metadata>
        !          1902: </record>
        !          1903: <record>
        !          1904: <header>
        !          1905: <identifier>oai:CSTC:76</identifier>
        !          1906: <datestamp>2001-09-06</datestamp>
        !          1907: </header>
        !          1908: <metadata>
        !          1909: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          1910:    <general>
        !          1911:       <title>TRY: automated testing of student programs</title>
        !          1912:       <catalogentry>
        !          1913:          <catalogue>CSTC</catalogue>
        !          1914:          <entry>76</entry>
        !          1915:       </catalogentry>
        !          1916:       <language>English</language>
        !          1917:       <description> The Try system, which runs under Unix, allows students to test their programs in a controlled manner with the instructor's test data, while keeping the data itself hidden from the student.</description>
        !          1918:       <keywords>testing</keywords>
        !          1919:       <keywords>student work</keywords>
        !          1920:       <keywords>on-line</keywords>
        !          1921:       <keywords>submission</keywords>
        !          1922:       <keywords>archiving</keywords>
        !          1923:       <keywords>Unix</keywords>
        !          1924:    </general>
        !          1925:    <lifecycle>
        !          1926:       <status>Final</status>
        !          1927:       <contribute>
        !          1928:          <role>Author</role>
        !          1929:          <entity>
        !          1930: BEGIN:vCard
        !          1931: FN:Kenneth Reek
        !          1932: N:Reek;Kenneth
        !          1933: EMAIL;INTERNET:kar@cs.rit.edu
        !          1934: END:vCard
        !          1935: </entity>
        !          1936:          <date datetype="datetime">
        !          1937:          2001-09-06
        !          1938:          </date>
        !          1939:       </contribute>
        !          1940:    </lifecycle>
        !          1941:    <metametadata>
        !          1942:       <contribute>
        !          1943:          <role>Contributor</role>
        !          1944:          <entity>
        !          1945: BEGIN:vCard
        !          1946: FN:Kenneth Reek
        !          1947: N:Reek;Kenneth
        !          1948: EMAIL;INTERNET:kar@cs.rit.edu
        !          1949: ORG:Rochester Institute of Technology;Computer Science
        !          1950: END:vCard
        !          1951: </entity>
        !          1952:          <date datetype="datetime">
        !          1953:          2001-09-06
        !          1954:          </date>
        !          1955:       </contribute>
        !          1956:       <language>en-US</language>
        !          1957:    </metametadata>
        !          1958:    <technical>
        !          1959:       <format>text/html</format>
        !          1960:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=76</location>
        !          1961:       <requirements>
        !          1962:          <type>Platform</type>
        !          1963:          <name>SGI, Sun Sparc, </name>
        !          1964:       </requirements>
        !          1965:       <requirements>
        !          1966:          <type>Operating System</type>
        !          1967:          <name>UNIX</name>
        !          1968:       </requirements>
        !          1969:       <requirements>
        !          1970:          <type>Programming Language</type>
        !          1971:          <name>C</name>
        !          1972:       </requirements>
        !          1973:    </technical>
        !          1974:    <educational>
        !          1975:       <intendedenduserrole>Learner</intendedenduserrole>
        !          1976:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          1977:       <learningcontext>Higher Education</learningcontext>
        !          1978:       <learningcontext>Secondary Education</learningcontext>
        !          1979:    </educational>
        !          1980:    <classification>
        !          1981:       <purpose>Educational Objective</purpose>
        !          1982:       <taxonpath>
        !          1983:          <source>ACM Computer Science Curriculum</source>
        !          1984:          <taxon>
        !          1985:             <entry>Human-Computer Communication</entry>
        !          1986:          </taxon>
        !          1987:       </taxonpath>
        !          1988:       <description>The type of class that this resource is best suited for</description>
        !          1989:    </classification>
        !          1990:    <classification>
        !          1991:       <purpose>Discipline</purpose>
        !          1992:       <taxonpath>
        !          1993:          <source>ACM Computing Classification System</source>
        !          1994:          <taxon>
        !          1995:             <entry>Software</entry>
        !          1996:          </taxon>
        !          1997:          <taxon>
        !          1998:             <entry>Miscellaneous</entry>
        !          1999:          </taxon>
        !          2000:       </taxonpath>
        !          2001:       <description>The subject classification that best describes the resource</description>
        !          2002:    </classification>
        !          2003: </oai_ims>
        !          2004: </metadata>
        !          2005: </record>
        !          2006: <record>
        !          2007: <header>
        !          2008: <identifier>oai:CSTC:94</identifier>
        !          2009: <datestamp>2000-09-26</datestamp>
        !          2010: </header>
        !          2011: <metadata>
        !          2012: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          2013:    <general>
        !          2014:       <title>Simulation of the 1-Dimensional Discrete Cosine and Fourier Transforms</title>
        !          2015:       <catalogentry>
        !          2016:          <catalogue>CSTC</catalogue>
        !          2017:          <entry>94</entry>
        !          2018:       </catalogentry>
        !          2019:       <language>English</language>
        !          2020:       <description> This applet belongs to the context of Multimedia or Signal Procesing. It simulates the one dimensional discrete cosine transform and the one dimensional discrete Fourier transform. Both transforms are a basis for modern signal processing algorithms like the JPEG image compression standard. When confronted with the mathematical formulas, most students show difficulties in understanding the notion of "time domain" and "frequency domain", or of "superposition of different frequencies". The applet simulates the transformation of a 1 dimensional signal. The amplitudes of the different frequency components can be modified, and the effect on the signal will get clearer. The user interface of the applet has been built to stimulate the user to play around with the tool. The applet is highly interactive and very flexible. One can choose between a number of given input signals or the user can build a signal by himself. Of course, a solution for every input is provided.</description>
        !          2021:       <keywords>Applet</keywords>
        !          2022:       <keywords>Simulation</keywords>
        !          2023:       <keywords>1-D DCT</keywords>
        !          2024:       <keywords>1-D DFT</keywords>
        !          2025:       <keywords>Transform</keywords>
        !          2026:    </general>
        !          2027:    <lifecycle>
        !          2028:       <status>Final</status>
        !          2029:       <contribute>
        !          2030:          <role>Author</role>
        !          2031:          <entity>
        !          2032: BEGIN:vCard
        !          2033: FN:Claudia Schremmer
        !          2034: N:Schremmer;Claudia
        !          2035: EMAIL;INTERNET:schremmer@informatik.uni-mannheim.de
        !          2036: END:vCard
        !          2037: </entity>
        !          2038:          <date datetype="datetime">
        !          2039:          2000-09-26
        !          2040:          </date>
        !          2041:       </contribute>
        !          2042:       <contribute>
        !          2043:          <role>Author</role>
        !          2044:          <entity>
        !          2045: BEGIN:vCard
        !          2046: FN:Christoph Kuhmuench
        !          2047: N:Kuhmuench;Christoph
        !          2048: EMAIL;INTERNET:kuhmuench@informatik.uni-mannheim.de
        !          2049: END:vCard
        !          2050: </entity>
        !          2051:          <date datetype="datetime">
        !          2052:          2000-09-26
        !          2053:          </date>
        !          2054:       </contribute>
        !          2055:       <contribute>
        !          2056:          <role>Author</role>
        !          2057:          <entity>
        !          2058: BEGIN:vCard
        !          2059: FN:Holger Wons
        !          2060: N:Wons;Holger
        !          2061: EMAIL;INTERNET:holger.wons@gmx.de
        !          2062: END:vCard
        !          2063: </entity>
        !          2064:          <date datetype="datetime">
        !          2065:          2000-09-26
        !          2066:          </date>
        !          2067:       </contribute>
        !          2068:    </lifecycle>
        !          2069:    <metametadata>
        !          2070:       <contribute>
        !          2071:          <role>Contributor</role>
        !          2072:          <entity>
        !          2073: BEGIN:vCard
        !          2074: FN:Claudia Schremmer
        !          2075: N:Schremmer;Claudia
        !          2076: EMAIL;INTERNET:schremmer@informatik.uni-mannheim.de
        !          2077: ORG:University of Mannheim;Praktische Informatik IV
        !          2078: END:vCard
        !          2079: </entity>
        !          2080:          <date datetype="datetime">
        !          2081:          2000-09-26
        !          2082:          </date>
        !          2083:       </contribute>
        !          2084:       <language>en-US</language>
        !          2085:    </metametadata>
        !          2086:    <technical>
        !          2087:       <format>text/html</format>
        !          2088:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=94</location>
        !          2089:       <requirements>
        !          2090:          <type>Platform</type>
        !          2091:          <name>Java Virtual Machine, HTML Browser</name>
        !          2092:       </requirements>
        !          2093:       <requirements>
        !          2094:          <type>Operating System</type>
        !          2095:          <name>All</name>
        !          2096:       </requirements>
        !          2097:       <requirements>
        !          2098:          <type>Programming Language</type>
        !          2099:          <name>Java, HTML</name>
        !          2100:       </requirements>
        !          2101:    </technical>
        !          2102:    <educational>
        !          2103:       <intendedenduserrole>Learner</intendedenduserrole>
        !          2104:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          2105:       <learningcontext>Higher Education</learningcontext>
        !          2106:       <learningcontext>Secondary Education</learningcontext>
        !          2107:    </educational>
        !          2108:    <rights>
        !          2109:       <copyrightandotherrestrictions>yes</copyrightandotherrestrictions>
        !          2110:       <description>(c) 2000 - LS Praktische Informatik IV, University of Mannheim</description>
        !          2111:    </rights>
        !          2112:    <classification>
        !          2113:       <purpose>Educational Objective</purpose>
        !          2114:       <taxonpath>
        !          2115:          <source>ACM Computer Science Curriculum</source>
        !          2116:          <taxon>
        !          2117:             <entry>Algorithms and Data Structures</entry>
        !          2118:          </taxon>
        !          2119:       </taxonpath>
        !          2120:       <description>The type of class that this resource is best suited for</description>
        !          2121:    </classification>
        !          2122:    <classification>
        !          2123:       <purpose>Discipline</purpose>
        !          2124:       <taxonpath>
        !          2125:          <source>ACM Computing Classification System</source>
        !          2126:          <taxon>
        !          2127:             <entry>Mathematics of Computing</entry>
        !          2128:          </taxon>
        !          2129:          <taxon>
        !          2130:             <entry>Discrete Mathematics</entry>
        !          2131:          </taxon>
        !          2132:       </taxonpath>
        !          2133:       <description>The subject classification that best describes the resource</description>
        !          2134:    </classification>
        !          2135:    <classification>
        !          2136:       <purpose>Discipline</purpose>
        !          2137:       <taxonpath>
        !          2138:          <source>ACM Computing Classification System</source>
        !          2139:          <taxon>
        !          2140:             <entry>Data</entry>
        !          2141:          </taxon>
        !          2142:          <taxon>
        !          2143:             <entry>Coding and Information Theory</entry>
        !          2144:          </taxon>
        !          2145:       </taxonpath>
        !          2146:       <description>The subject classification that best describes the resource</description>
        !          2147:    </classification>
        !          2148:    <classification>
        !          2149:       <purpose>Discipline</purpose>
        !          2150:       <taxonpath>
        !          2151:          <source>ACM Computing Classification System</source>
        !          2152:          <taxon>
        !          2153:             <entry>Data</entry>
        !          2154:          </taxon>
        !          2155:          <taxon>
        !          2156:             <entry>Data Storage Representations</entry>
        !          2157:          </taxon>
        !          2158:       </taxonpath>
        !          2159:       <description>The subject classification that best describes the resource</description>
        !          2160:    </classification>
        !          2161:    <classification>
        !          2162:       <purpose>Discipline</purpose>
        !          2163:       <taxonpath>
        !          2164:          <source>ACM Computing Classification System</source>
        !          2165:          <taxon>
        !          2166:             <entry>Data</entry>
        !          2167:          </taxon>
        !          2168:          <taxon>
        !          2169:             <entry>General</entry>
        !          2170:          </taxon>
        !          2171:       </taxonpath>
        !          2172:       <description>The subject classification that best describes the resource</description>
        !          2173:    </classification>
        !          2174: </oai_ims>
        !          2175: </metadata>
        !          2176: </record>
        !          2177: <record>
        !          2178: <header>
        !          2179: <identifier>oai:CSTC:89</identifier>
        !          2180: <datestamp>2000-06-12</datestamp>
        !          2181: </header>
        !          2182: <metadata>
        !          2183: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          2184:    <general>
        !          2185:       <title>JPEG interactive Visualization</title>
        !          2186:       <catalogentry>
        !          2187:          <catalogue>CSTC</catalogue>
        !          2188:          <entry>89</entry>
        !          2189:       </catalogentry>
        !          2190:       <language>Spanish</language>
        !          2191:       <language>German</language>
        !          2192:       <language>English</language>
        !          2193:       <description> Interactive visualization of the JPEG compression algorithm.</description>
        !          2194:       <keywords>Interactive</keywords>
        !          2195:       <keywords>visualization</keywords>
        !          2196:       <keywords>JPEG</keywords>
        !          2197:    </general>
        !          2198:    <lifecycle>
        !          2199:       <status>Final</status>
        !          2200:       <contribute>
        !          2201:          <role>Author</role>
        !          2202:          <entity>
        !          2203: BEGIN:vCard
        !          2204: FN:Abdulmotaleb El Saddik
        !          2205: N:El Saddik;Abdulmotaleb
        !          2206: EMAIL;INTERNET:abed@multibook.de
        !          2207: END:vCard
        !          2208: </entity>
        !          2209:          <date datetype="datetime">
        !          2210:          2000-06-12
        !          2211:          </date>
        !          2212:       </contribute>
        !          2213:    </lifecycle>
        !          2214:    <metametadata>
        !          2215:       <contribute>
        !          2216:          <role>Contributor</role>
        !          2217:          <entity>
        !          2218: BEGIN:vCard
        !          2219: FN:Abdulmotaleb El Saddik
        !          2220: N:El Saddik;Abdulmotaleb
        !          2221: EMAIL;INTERNET:abed@multibook.de
        !          2222: ORG:Darmstadt University of Technology;KOM
        !          2223: END:vCard
        !          2224: </entity>
        !          2225:          <date datetype="datetime">
        !          2226:          2000-06-12
        !          2227:          </date>
        !          2228:       </contribute>
        !          2229:       <language>en-US</language>
        !          2230:    </metametadata>
        !          2231:    <technical>
        !          2232:       <format>text/html</format>
        !          2233:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=89</location>
        !          2234:       <requirements>
        !          2235:          <type>Platform</type>
        !          2236:          <name>Java Virtual Machine, HTML Browser</name>
        !          2237:       </requirements>
        !          2238:       <requirements>
        !          2239:          <type>Operating System</type>
        !          2240:          <name>Windows NT, Windows 95/98, UNIX, OS/2, Mac OS</name>
        !          2241:       </requirements>
        !          2242:       <requirements>
        !          2243:          <type>Programming Language</type>
        !          2244:          <name>Java</name>
        !          2245:       </requirements>
        !          2246:    </technical>
        !          2247:    <educational>
        !          2248:       <intendedenduserrole>Learner</intendedenduserrole>
        !          2249:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          2250:       <learningcontext>Higher Education</learningcontext>
        !          2251:       <learningcontext>Secondary Education</learningcontext>
        !          2252:    </educational>
        !          2253:    <classification>
        !          2254:       <purpose>Educational Objective</purpose>
        !          2255:       <taxonpath>
        !          2256:          <source>ACM Computer Science Curriculum</source>
        !          2257:          <taxon>
        !          2258:             <entry>Human-Computer Communication</entry>
        !          2259:          </taxon>
        !          2260:       </taxonpath>
        !          2261:       <description>The type of class that this resource is best suited for</description>
        !          2262:    </classification>
        !          2263:    <classification>
        !          2264:       <purpose>Discipline</purpose>
        !          2265:       <taxonpath>
        !          2266:          <source>ACM Computing Classification System</source>
        !          2267:          <taxon>
        !          2268:             <entry>Computing Methodologies</entry>
        !          2269:          </taxon>
        !          2270:          <taxon>
        !          2271:             <entry>Simulation and Modeling</entry>
        !          2272:          </taxon>
        !          2273:       </taxonpath>
        !          2274:       <description>The subject classification that best describes the resource</description>
        !          2275:    </classification>
        !          2276: </oai_ims>
        !          2277: </metadata>
        !          2278: </record>
        !          2279: <record>
        !          2280: <header>
        !          2281: <identifier>oai:CSTC:101</identifier>
        !          2282: <datestamp>2001-09-06</datestamp>
        !          2283: </header>
        !          2284: <metadata>
        !          2285: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          2286:    <general>
        !          2287:       <title>Computing Education: A Journey Continued</title>
        !          2288:       <catalogentry>
        !          2289:          <catalogue>CSTC</catalogue>
        !          2290:          <entry>101</entry>
        !          2291:       </catalogentry>
        !          2292:       <language>English</language>
        !          2293:       <description> This is the talk I gave at SIGCSE 2001 in Charlotte.</description>
        !          2294:       <keywords>SIGCSE luncheon talk</keywords>
        !          2295:       <keywords>Generations</keywords>
        !          2296:       <keywords>CSE resources</keywords>
        !          2297:    </general>
        !          2298:    <lifecycle>
        !          2299:       <status>Final</status>
        !          2300:       <contribute>
        !          2301:          <role>Author</role>
        !          2302:          <entity>
        !          2303: BEGIN:vCard
        !          2304: FN:Lillian Cassel
        !          2305: N:Cassel;Lillian
        !          2306: EMAIL;INTERNET:cassel@acm.org
        !          2307: END:vCard
        !          2308: </entity>
        !          2309:          <date datetype="datetime">
        !          2310:          2001-09-06
        !          2311:          </date>
        !          2312:       </contribute>
        !          2313:    </lifecycle>
        !          2314:    <metametadata>
        !          2315:       <contribute>
        !          2316:          <role>Contributor</role>
        !          2317:          <entity>
        !          2318: BEGIN:vCard
        !          2319: FN:Lillian Cassel
        !          2320: N:Cassel;Lillian
        !          2321: EMAIL;INTERNET:cassel@acm.org
        !          2322: ORG:Villanova University;Computing Sciences
        !          2323: END:vCard
        !          2324: </entity>
        !          2325:          <date datetype="datetime">
        !          2326:          2001-09-06
        !          2327:          </date>
        !          2328:       </contribute>
        !          2329:       <language>en-US</language>
        !          2330:    </metametadata>
        !          2331:    <technical>
        !          2332:       <format>text/html</format>
        !          2333:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=101</location>
        !          2334:       <requirements>
        !          2335:          <type>Platform</type>
        !          2336:          <name>PC, HTML Browser</name>
        !          2337:       </requirements>
        !          2338:    </technical>
        !          2339:    <educational>
        !          2340:       <intendedenduserrole>Learner</intendedenduserrole>
        !          2341:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          2342:       <learningcontext>Higher Education</learningcontext>
        !          2343:       <learningcontext>Secondary Education</learningcontext>
        !          2344:    </educational>
        !          2345:    <classification>
        !          2346:       <purpose>Educational Objective</purpose>
        !          2347:       <taxonpath>
        !          2348:          <source>ACM Computer Science Curriculum</source>
        !          2349:          <taxon>
        !          2350:             <entry>Social, Ethical and Professional Issue</entry>
        !          2351:          </taxon>
        !          2352:       </taxonpath>
        !          2353:       <description>The type of class that this resource is best suited for</description>
        !          2354:    </classification>
        !          2355:    <classification>
        !          2356:       <purpose>Discipline</purpose>
        !          2357:       <taxonpath>
        !          2358:          <source>ACM Computing Classification System</source>
        !          2359:          <taxon>
        !          2360:             <entry>General Literature</entry>
        !          2361:          </taxon>
        !          2362:          <taxon>
        !          2363:             <entry>General</entry>
        !          2364:          </taxon>
        !          2365:       </taxonpath>
        !          2366:       <description>The subject classification that best describes the resource</description>
        !          2367:    </classification>
        !          2368: </oai_ims>
        !          2369: </metadata>
        !          2370: </record>
        !          2371: <record>
        !          2372: <header>
        !          2373: <identifier>oai:CSTC:100</identifier>
        !          2374: <datestamp>2001-10-29</datestamp>
        !          2375: </header>
        !          2376: <metadata>
        !          2377: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          2378:    <general>
        !          2379:       <title>Simulation of the 2-dimensional DCT</title>
        !          2380:       <catalogentry>
        !          2381:          <catalogue>CSTC</catalogue>
        !          2382:          <entry>100</entry>
        !          2383:       </catalogentry>
        !          2384:       <language>English</language>
        !          2385:       <description> This applet visualizes the 2 dimensional DCT as it is used in the JPEG compression standard. Also, most of the Internet compressions standards
        !          2386: for video (Motion JPEG, H.261, H.263) are based on the Discrete Cosine Transform (DCT) which splits an image up into blocks of 8x8 pixels. Our applet tries to clear out the problems with the 2 dimensional DCT by invoking the "play instinct" of students: The user can chose discrete 8x8 (2-D) input values in the range 0 to 255 for the grey value of the pixels. In the
        !          2387: frequency domain, rulers allow to adjust the amplitudes of the different frequencies. A backward transform plots the resulting grey values from the chosen ampitudes over the initial input values. The task is to find the "correct" amplitudes in the frequency domain to recover the initial signal. Of course, we have included a solution to the problem...</description>
        !          2388:       <keywords>simulation</keywords>
        !          2389:       <keywords>signal processing</keywords>
        !          2390:       <keywords>2-dimensional DCT</keywords>
        !          2391:    </general>
        !          2392:    <lifecycle>
        !          2393:       <status>Final</status>
        !          2394:       <contribute>
        !          2395:          <role>Author</role>
        !          2396:          <entity>
        !          2397: BEGIN:vCard
        !          2398: FN:Holger Wons
        !          2399: N:Wons;Holger
        !          2400: EMAIL;INTERNET:holger.wons@gmx.de
        !          2401: END:vCard
        !          2402: </entity>
        !          2403:          <date datetype="datetime">
        !          2404:          2001-10-29
        !          2405:          </date>
        !          2406:       </contribute>
        !          2407:       <contribute>
        !          2408:          <role>Author</role>
        !          2409:          <entity>
        !          2410: BEGIN:vCard
        !          2411: FN:Claudia Schremmer
        !          2412: N:Schremmer;Claudia
        !          2413: EMAIL;INTERNET:schremmer@informatik.uni-mannheim.de
        !          2414: END:vCard
        !          2415: </entity>
        !          2416:          <date datetype="datetime">
        !          2417:          2001-10-29
        !          2418:          </date>
        !          2419:       </contribute>
        !          2420:    </lifecycle>
        !          2421:    <metametadata>
        !          2422:       <contribute>
        !          2423:          <role>Contributor</role>
        !          2424:          <entity>
        !          2425: BEGIN:vCard
        !          2426: FN:Claudia Schremmer
        !          2427: N:Schremmer;Claudia
        !          2428: EMAIL;INTERNET:schremmer@informatik.uni-mannheim.de
        !          2429: ORG:University of Mannheim;Praktische Informatik IV
        !          2430: END:vCard
        !          2431: </entity>
        !          2432:          <date datetype="datetime">
        !          2433:          2001-10-29
        !          2434:          </date>
        !          2435:       </contribute>
        !          2436:       <language>en-US</language>
        !          2437:    </metametadata>
        !          2438:    <technical>
        !          2439:       <format>text/html</format>
        !          2440:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=100</location>
        !          2441:       <requirements>
        !          2442:          <type>Platform</type>
        !          2443:          <name>HTML Browser, Java Virtual Machine</name>
        !          2444:       </requirements>
        !          2445:       <requirements>
        !          2446:          <type>Operating System</type>
        !          2447:          <name>All</name>
        !          2448:       </requirements>
        !          2449:       <requirements>
        !          2450:          <type>Programming Language</type>
        !          2451:          <name>HTML, Java</name>
        !          2452:       </requirements>
        !          2453:    </technical>
        !          2454:    <educational>
        !          2455:       <intendedenduserrole>Learner</intendedenduserrole>
        !          2456:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          2457:       <learningcontext>Higher Education</learningcontext>
        !          2458:       <learningcontext>Secondary Education</learningcontext>
        !          2459:    </educational>
        !          2460:    <classification>
        !          2461:       <purpose>Educational Objective</purpose>
        !          2462:       <taxonpath>
        !          2463:          <source>ACM Computer Science Curriculum</source>
        !          2464:          <taxon>
        !          2465:             <entry>Algorithms and Data Structures</entry>
        !          2466:          </taxon>
        !          2467:       </taxonpath>
        !          2468:       <description>The type of class that this resource is best suited for</description>
        !          2469:    </classification>
        !          2470:    <classification>
        !          2471:       <purpose>Discipline</purpose>
        !          2472:       <taxonpath>
        !          2473:          <source>ACM Computing Classification System</source>
        !          2474:          <taxon>
        !          2475:             <entry>Data</entry>
        !          2476:          </taxon>
        !          2477:          <taxon>
        !          2478:             <entry>Coding and Information Theory</entry>
        !          2479:          </taxon>
        !          2480:       </taxonpath>
        !          2481:       <description>The subject classification that best describes the resource</description>
        !          2482:    </classification>
        !          2483:    <classification>
        !          2484:       <purpose>Discipline</purpose>
        !          2485:       <taxonpath>
        !          2486:          <source>ACM Computing Classification System</source>
        !          2487:          <taxon>
        !          2488:             <entry>Theory of Computation</entry>
        !          2489:          </taxon>
        !          2490:          <taxon>
        !          2491:             <entry>Miscellaneous</entry>
        !          2492:          </taxon>
        !          2493:       </taxonpath>
        !          2494:       <description>The subject classification that best describes the resource</description>
        !          2495:    </classification>
        !          2496:    <classification>
        !          2497:       <purpose>Discipline</purpose>
        !          2498:       <taxonpath>
        !          2499:          <source>ACM Computing Classification System</source>
        !          2500:          <taxon>
        !          2501:             <entry>Mathematics of Computing</entry>
        !          2502:          </taxon>
        !          2503:          <taxon>
        !          2504:             <entry>Miscellaneous</entry>
        !          2505:          </taxon>
        !          2506:       </taxonpath>
        !          2507:       <description>The subject classification that best describes the resource</description>
        !          2508:    </classification>
        !          2509: </oai_ims>
        !          2510: </metadata>
        !          2511: </record>
        !          2512: <record>
        !          2513: <header>
        !          2514: <identifier>oai:CSTC:108</identifier>
        !          2515: <datestamp>2001-09-06</datestamp>
        !          2516: </header>
        !          2517: <metadata>
        !          2518: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          2519:    <general>
        !          2520:       <title>Altair Emulator</title>
        !          2521:       <catalogentry>
        !          2522:          <catalogue>CSTC</catalogue>
        !          2523:          <entry>108</entry>
        !          2524:       </catalogentry>
        !          2525:       <language>English</language>
        !          2526:       <description> This is a very well done emulator of the Altair 8800b</description>
        !          2527:       <keywords>Altair emulator 8800</keywords>
        !          2528:    </general>
        !          2529:    <lifecycle>
        !          2530:       <status>Final</status>
        !          2531:       <contribute>
        !          2532:          <role>Author</role>
        !          2533:          <entity>
        !          2534: BEGIN:vCard
        !          2535: FN:Claus Giloi
        !          2536: N:Giloi;Claus
        !          2537: EMAIL;INTERNET:clausgi@microsoft.com
        !          2538: END:vCard
        !          2539: </entity>
        !          2540:          <date datetype="datetime">
        !          2541:          2001-09-06
        !          2542:          </date>
        !          2543:       </contribute>
        !          2544:    </lifecycle>
        !          2545:    <metametadata>
        !          2546:       <contribute>
        !          2547:          <role>Contributor</role>
        !          2548:          <entity>
        !          2549: BEGIN:vCard
        !          2550: FN:Mike Belanger
        !          2551: N:Belanger;Mike
        !          2552: EMAIL;INTERNET:mbelange@vt.edu
        !          2553: ORG:;
        !          2554: END:vCard
        !          2555: </entity>
        !          2556:          <date datetype="datetime">
        !          2557:          2001-09-06
        !          2558:          </date>
        !          2559:       </contribute>
        !          2560:       <language>en-US</language>
        !          2561:    </metametadata>
        !          2562:    <technical>
        !          2563:       <format>text/html</format>
        !          2564:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=108</location>
        !          2565:       <requirements>
        !          2566:          <type>Platform</type>
        !          2567:          <name>PC</name>
        !          2568:       </requirements>
        !          2569:       <requirements>
        !          2570:          <type>Operating System</type>
        !          2571:          <name>Windows NT, Windows 95/98</name>
        !          2572:       </requirements>
        !          2573:    </technical>
        !          2574:    <educational>
        !          2575:       <intendedenduserrole>Learner</intendedenduserrole>
        !          2576:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          2577:       <learningcontext>Higher Education</learningcontext>
        !          2578:       <learningcontext>Secondary Education</learningcontext>
        !          2579:    </educational>
        !          2580:    <classification>
        !          2581:       <purpose>Educational Objective</purpose>
        !          2582:       <taxonpath>
        !          2583:          <source>ACM Computer Science Curriculum</source>
        !          2584:          <taxon>
        !          2585:             <entry>Architecture Methods</entry>
        !          2586:          </taxon>
        !          2587:       </taxonpath>
        !          2588:       <description>The type of class that this resource is best suited for</description>
        !          2589:    </classification>
        !          2590:    <classification>
        !          2591:       <purpose>Discipline</purpose>
        !          2592:       <taxonpath>
        !          2593:          <source>ACM Computing Classification System</source>
        !          2594:          <taxon>
        !          2595:             <entry>Computing Milieux</entry>
        !          2596:          </taxon>
        !          2597:          <taxon>
        !          2598:             <entry>History of Computing</entry>
        !          2599:          </taxon>
        !          2600:       </taxonpath>
        !          2601:       <description>The subject classification that best describes the resource</description>
        !          2602:    </classification>
        !          2603: </oai_ims>
        !          2604: </metadata>
        !          2605: </record>
        !          2606: <record>
        !          2607: <header>
        !          2608: <identifier>oai:CSTC:109</identifier>
        !          2609: <datestamp>2001-09-06</datestamp>
        !          2610: </header>
        !          2611: <metadata>
        !          2612: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          2613:    <general>
        !          2614:       <title>Expression Tree Builder and Evaluator</title>
        !          2615:       <catalogentry>
        !          2616:          <catalogue>CSTC</catalogue>
        !          2617:          <entry>109</entry>
        !          2618:       </catalogentry>
        !          2619:       <language>English</language>
        !          2620:       <description> Builds and evaluates binary expression trees</description>
        !          2621:       <keywords>expression tree</keywords>
        !          2622:    </general>
        !          2623:    <lifecycle>
        !          2624:       <status>Final</status>
        !          2625:       <contribute>
        !          2626:          <role>Author</role>
        !          2627:          <entity>
        !          2628: BEGIN:vCard
        !          2629: FN:Michael Goodrich
        !          2630: N:Goodrich;Michael
        !          2631: EMAIL;INTERNET:: goodrich@jhu.edu
        !          2632: END:vCard
        !          2633: </entity>
        !          2634:          <date datetype="datetime">
        !          2635:          2001-09-06
        !          2636:          </date>
        !          2637:       </contribute>
        !          2638:    </lifecycle>
        !          2639:    <metametadata>
        !          2640:       <contribute>
        !          2641:          <role>Contributor</role>
        !          2642:          <entity>
        !          2643: BEGIN:vCard
        !          2644: FN:Steve Hayes
        !          2645: N:Hayes;Steve
        !          2646: EMAIL;INTERNET:shayes@vt.edu
        !          2647: ORG:Virginia Tech;Computer Science
        !          2648: END:vCard
        !          2649: </entity>
        !          2650:          <date datetype="datetime">
        !          2651:          2001-09-06
        !          2652:          </date>
        !          2653:       </contribute>
        !          2654:       <language>en-US</language>
        !          2655:    </metametadata>
        !          2656:    <technical>
        !          2657:       <format>text/html</format>
        !          2658:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=109</location>
        !          2659:       <requirements>
        !          2660:          <type>Platform</type>
        !          2661:          <name>Java Virtual Machine</name>
        !          2662:       </requirements>
        !          2663:       <requirements>
        !          2664:          <type>Operating System</type>
        !          2665:          <name>All</name>
        !          2666:       </requirements>
        !          2667:       <requirements>
        !          2668:          <type>Programming Language</type>
        !          2669:          <name>Java</name>
        !          2670:       </requirements>
        !          2671:    </technical>
        !          2672:    <educational>
        !          2673:       <intendedenduserrole>Learner</intendedenduserrole>
        !          2674:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          2675:       <learningcontext>Higher Education</learningcontext>
        !          2676:       <learningcontext>Secondary Education</learningcontext>
        !          2677:    </educational>
        !          2678:    <classification>
        !          2679:       <purpose>Educational Objective</purpose>
        !          2680:       <taxonpath>
        !          2681:          <source>ACM Computer Science Curriculum</source>
        !          2682:          <taxon>
        !          2683:             <entry>Algorithms and Data Structures</entry>
        !          2684:          </taxon>
        !          2685:       </taxonpath>
        !          2686:       <description>The type of class that this resource is best suited for</description>
        !          2687:    </classification>
        !          2688:    <classification>
        !          2689:       <purpose>Educational Objective</purpose>
        !          2690:       <taxonpath>
        !          2691:          <source>ACM Computer Science Curriculum</source>
        !          2692:          <taxon>
        !          2693:             <entry>Numerical and Symbolic Computation</entry>
        !          2694:          </taxon>
        !          2695:       </taxonpath>
        !          2696:       <description>The type of class that this resource is best suited for</description>
        !          2697:    </classification>
        !          2698:    <classification>
        !          2699:       <purpose>Discipline</purpose>
        !          2700:       <taxonpath>
        !          2701:          <source>ACM Computing Classification System</source>
        !          2702:          <taxon>
        !          2703:             <entry>Data</entry>
        !          2704:          </taxon>
        !          2705:          <taxon>
        !          2706:             <entry>Data Structures</entry>
        !          2707:          </taxon>
        !          2708:       </taxonpath>
        !          2709:       <description>The subject classification that best describes the resource</description>
        !          2710:    </classification>
        !          2711: </oai_ims>
        !          2712: </metadata>
        !          2713: </record>
        !          2714: <record>
        !          2715: <header>
        !          2716: <identifier>oai:CSTC:110</identifier>
        !          2717: <datestamp>2001-09-06</datestamp>
        !          2718: </header>
        !          2719: <metadata>
        !          2720: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          2721:    <general>
        !          2722:       <title>EDSAC Emulator</title>
        !          2723:       <catalogentry>
        !          2724:          <catalogue>CSTC</catalogue>
        !          2725:          <entry>110</entry>
        !          2726:       </catalogentry>
        !          2727:       <language>English</language>
        !          2728:       <description> The EDSAC was the world's first stored-program computer to operate a regular computing service. Designed and built at Cambridge University, England, the EDSAC performed its first calculation on 6 May 1949.
        !          2729: The Edsac simulator is a faithful software evocation of the EDSAC computer as it existed in 1949-51. The user interface has all the controls and displays of the original machine, and the system includes a library of original programs, subroutines, and debugging software. The simulator is intended for use in teaching the history of computing; as a tutorial introduction to the classic "von Neumann" computer; or as an historical experience for current computer practitioners.</description>
        !          2730:       <keywords>EDSAC Emulator</keywords>
        !          2731:    </general>
        !          2732:    <lifecycle>
        !          2733:       <status>Final</status>
        !          2734:       <contribute>
        !          2735:          <role>Author</role>
        !          2736:          <entity>
        !          2737: BEGIN:vCard
        !          2738: FN:Martin Campbell-Kelly
        !          2739: N:Campbell-Kelly;Martin
        !          2740: EMAIL;INTERNET:mck@dcs.warwick.ac.uk
        !          2741: END:vCard
        !          2742: </entity>
        !          2743:          <date datetype="datetime">
        !          2744:          2001-09-06
        !          2745:          </date>
        !          2746:       </contribute>
        !          2747:    </lifecycle>
        !          2748:    <metametadata>
        !          2749:       <contribute>
        !          2750:          <role>Contributor</role>
        !          2751:          <entity>
        !          2752: BEGIN:vCard
        !          2753: FN:Mike Belanger
        !          2754: N:Belanger;Mike
        !          2755: EMAIL;INTERNET:mbelange@vt.edu
        !          2756: ORG:;
        !          2757: END:vCard
        !          2758: </entity>
        !          2759:          <date datetype="datetime">
        !          2760:          2001-09-06
        !          2761:          </date>
        !          2762:       </contribute>
        !          2763:       <language>en-US</language>
        !          2764:    </metametadata>
        !          2765:    <technical>
        !          2766:       <format>text/html</format>
        !          2767:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=110</location>
        !          2768:       <requirements>
        !          2769:          <type>Platform</type>
        !          2770:          <name>PC</name>
        !          2771:       </requirements>
        !          2772:       <requirements>
        !          2773:          <type>Operating System</type>
        !          2774:          <name>Windows 95/98, Windows NT</name>
        !          2775:       </requirements>
        !          2776:    </technical>
        !          2777:    <educational>
        !          2778:       <intendedenduserrole>Learner</intendedenduserrole>
        !          2779:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          2780:       <learningcontext>Higher Education</learningcontext>
        !          2781:       <learningcontext>Secondary Education</learningcontext>
        !          2782:    </educational>
        !          2783:    <classification>
        !          2784:       <purpose>Educational Objective</purpose>
        !          2785:       <taxonpath>
        !          2786:          <source>ACM Computer Science Curriculum</source>
        !          2787:          <taxon>
        !          2788:             <entry>Architecture Methods</entry>
        !          2789:          </taxon>
        !          2790:       </taxonpath>
        !          2791:       <description>The type of class that this resource is best suited for</description>
        !          2792:    </classification>
        !          2793:    <classification>
        !          2794:       <purpose>Discipline</purpose>
        !          2795:       <taxonpath>
        !          2796:          <source>ACM Computing Classification System</source>
        !          2797:          <taxon>
        !          2798:             <entry>Computing Milieux</entry>
        !          2799:          </taxon>
        !          2800:          <taxon>
        !          2801:             <entry>History of Computing</entry>
        !          2802:          </taxon>
        !          2803:       </taxonpath>
        !          2804:       <description>The subject classification that best describes the resource</description>
        !          2805:    </classification>
        !          2806: </oai_ims>
        !          2807: </metadata>
        !          2808: </record>
        !          2809: <record>
        !          2810: <header>
        !          2811: <identifier>oai:CSTC:111</identifier>
        !          2812: <datestamp>2001-09-06</datestamp>
        !          2813: </header>
        !          2814: <metadata>
        !          2815: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          2816:    <general>
        !          2817:       <title>Interactive Stack and Queue ADTs</title>
        !          2818:       <catalogentry>
        !          2819:          <catalogue>CSTC</catalogue>
        !          2820:          <entry>111</entry>
        !          2821:       </catalogentry>
        !          2822:       <language>English</language>
        !          2823:       <description> Interactive stacks and queues in several implementations (array/linked)</description>
        !          2824:       <keywords>stack</keywords>
        !          2825:       <keywords>queue</keywords>
        !          2826:    </general>
        !          2827:    <lifecycle>
        !          2828:       <status>Final</status>
        !          2829:       <contribute>
        !          2830:          <role>Author</role>
        !          2831:          <entity>
        !          2832: BEGIN:vCard
        !          2833: FN:Roberto Tamassia
        !          2834: N:Tamassia;Roberto
        !          2835: EMAIL;INTERNET:rt@cs.brown.edu
        !          2836: END:vCard
        !          2837: </entity>
        !          2838:          <date datetype="datetime">
        !          2839:          2001-09-06
        !          2840:          </date>
        !          2841:       </contribute>
        !          2842:       <contribute>
        !          2843:          <role>Author</role>
        !          2844:          <entity>
        !          2845: BEGIN:vCard
        !          2846: FN:Michael Goodrich
        !          2847: N:Goodrich;Michael
        !          2848: EMAIL;INTERNET:goodrich@cs.jhu.edu
        !          2849: END:vCard
        !          2850: </entity>
        !          2851:          <date datetype="datetime">
        !          2852:          2001-09-06
        !          2853:          </date>
        !          2854:       </contribute>
        !          2855:    </lifecycle>
        !          2856:    <metametadata>
        !          2857:       <contribute>
        !          2858:          <role>Contributor</role>
        !          2859:          <entity>
        !          2860: BEGIN:vCard
        !          2861: FN:Steve Hayes
        !          2862: N:Hayes;Steve
        !          2863: EMAIL;INTERNET:shayes@vt.edu
        !          2864: ORG:Virginia Tech;Computer Science
        !          2865: END:vCard
        !          2866: </entity>
        !          2867:          <date datetype="datetime">
        !          2868:          2001-09-06
        !          2869:          </date>
        !          2870:       </contribute>
        !          2871:       <language>en-US</language>
        !          2872:    </metametadata>
        !          2873:    <technical>
        !          2874:       <format>text/html</format>
        !          2875:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=111</location>
        !          2876:       <requirements>
        !          2877:          <type>Platform</type>
        !          2878:          <name>Java Virtual Machine</name>
        !          2879:       </requirements>
        !          2880:       <requirements>
        !          2881:          <type>Operating System</type>
        !          2882:          <name>All</name>
        !          2883:       </requirements>
        !          2884:       <requirements>
        !          2885:          <type>Programming Language</type>
        !          2886:          <name>Java</name>
        !          2887:       </requirements>
        !          2888:    </technical>
        !          2889:    <educational>
        !          2890:       <intendedenduserrole>Learner</intendedenduserrole>
        !          2891:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          2892:       <learningcontext>Higher Education</learningcontext>
        !          2893:       <learningcontext>Secondary Education</learningcontext>
        !          2894:    </educational>
        !          2895:    <classification>
        !          2896:       <purpose>Educational Objective</purpose>
        !          2897:       <taxonpath>
        !          2898:          <source>ACM Computer Science Curriculum</source>
        !          2899:          <taxon>
        !          2900:             <entry>Algorithms and Data Structures</entry>
        !          2901:          </taxon>
        !          2902:       </taxonpath>
        !          2903:       <description>The type of class that this resource is best suited for</description>
        !          2904:    </classification>
        !          2905:    <classification>
        !          2906:       <purpose>Discipline</purpose>
        !          2907:       <taxonpath>
        !          2908:          <source>ACM Computing Classification System</source>
        !          2909:          <taxon>
        !          2910:             <entry>Data</entry>
        !          2911:          </taxon>
        !          2912:          <taxon>
        !          2913:             <entry>Data Structures</entry>
        !          2914:          </taxon>
        !          2915:       </taxonpath>
        !          2916:       <description>The subject classification that best describes the resource</description>
        !          2917:    </classification>
        !          2918: </oai_ims>
        !          2919: </metadata>
        !          2920: </record>
        !          2921: <record>
        !          2922: <header>
        !          2923: <identifier>oai:CSTC:113</identifier>
        !          2924: <datestamp>2001-09-06</datestamp>
        !          2925: </header>
        !          2926: <metadata>
        !          2927: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          2928:    <general>
        !          2929:       <title>Binary Genetic Algorithm Tool</title>
        !          2930:       <catalogentry>
        !          2931:          <catalogue>CSTC</catalogue>
        !          2932:          <entry>113</entry>
        !          2933:       </catalogentry>
        !          2934:       <description> This utility implements a basic genetic algorithm system.</description>
        !          2935:       <keywords>algorithm</keywords>
        !          2936:       <keywords>binary</keywords>
        !          2937:       <keywords>genetic</keywords>
        !          2938:    </general>
        !          2939:    <lifecycle>
        !          2940:       <status>Final</status>
        !          2941:       <contribute>
        !          2942:          <role>Author</role>
        !          2943:          <entity>
        !          2944: BEGIN:vCard
        !          2945: FN:Craig Beattie
        !          2946: N:Beattie;Craig
        !          2947: EMAIL;INTERNET:coneman@mindless.com
        !          2948: END:vCard
        !          2949: </entity>
        !          2950:          <date datetype="datetime">
        !          2951:          2001-09-06
        !          2952:          </date>
        !          2953:       </contribute>
        !          2954:    </lifecycle>
        !          2955:    <metametadata>
        !          2956:       <contribute>
        !          2957:          <role>Contributor</role>
        !          2958:          <entity>
        !          2959: BEGIN:vCard
        !          2960: FN:Vikram Narula
        !          2961: N:Narula;Vikram
        !          2962: EMAIL;INTERNET:vnarula@vt.edu
        !          2963: ORG:Virginia Tech;CS
        !          2964: END:vCard
        !          2965: </entity>
        !          2966:          <date datetype="datetime">
        !          2967:          2001-09-06
        !          2968:          </date>
        !          2969:       </contribute>
        !          2970:       <language>en-US</language>
        !          2971:    </metametadata>
        !          2972:    <technical>
        !          2973:       <format>text/html</format>
        !          2974:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=113</location>
        !          2975:    </technical>
        !          2976:    <educational>
        !          2977:       <intendedenduserrole>Learner</intendedenduserrole>
        !          2978:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          2979:       <learningcontext>Higher Education</learningcontext>
        !          2980:       <learningcontext>Secondary Education</learningcontext>
        !          2981:    </educational>
        !          2982:    <classification>
        !          2983:       <purpose>Educational Objective</purpose>
        !          2984:       <taxonpath>
        !          2985:          <source>ACM Computer Science Curriculum</source>
        !          2986:          <taxon>
        !          2987:             <entry>Algorithms and Data Structures</entry>
        !          2988:          </taxon>
        !          2989:       </taxonpath>
        !          2990:       <description>The type of class that this resource is best suited for</description>
        !          2991:    </classification>
        !          2992:    <classification>
        !          2993:       <purpose>Discipline</purpose>
        !          2994:       <taxonpath>
        !          2995:          <source>ACM Computing Classification System</source>
        !          2996:          <taxon>
        !          2997:             <entry>Software</entry>
        !          2998:          </taxon>
        !          2999:          <taxon>
        !          3000:             <entry>Miscellaneous</entry>
        !          3001:          </taxon>
        !          3002:       </taxonpath>
        !          3003:       <description>The subject classification that best describes the resource</description>
        !          3004:    </classification>
        !          3005: </oai_ims>
        !          3006: </metadata>
        !          3007: </record>
        !          3008: <record>
        !          3009: <header>
        !          3010: <identifier>oai:CSTC:114</identifier>
        !          3011: <datestamp>2001-09-06</datestamp>
        !          3012: </header>
        !          3013: <metadata>
        !          3014: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          3015:    <general>
        !          3016:       <title>Interactive Sequence ADT</title>
        !          3017:       <catalogentry>
        !          3018:          <catalogue>CSTC</catalogue>
        !          3019:          <entry>114</entry>
        !          3020:       </catalogentry>
        !          3021:       <language>English</language>
        !          3022:       <description> An interactive sequence abstract data type applet.</description>
        !          3023:       <keywords>sequence</keywords>
        !          3024:    </general>
        !          3025:    <lifecycle>
        !          3026:       <status>Final</status>
        !          3027:       <contribute>
        !          3028:          <role>Author</role>
        !          3029:          <entity>
        !          3030: BEGIN:vCard
        !          3031: FN:Micheal Goodrich
        !          3032: N:Goodrich;Micheal
        !          3033: EMAIL;INTERNET:goodrich@cs.jhu.edu
        !          3034: END:vCard
        !          3035: </entity>
        !          3036:          <date datetype="datetime">
        !          3037:          2001-09-06
        !          3038:          </date>
        !          3039:       </contribute>
        !          3040:       <contribute>
        !          3041:          <role>Author</role>
        !          3042:          <entity>
        !          3043: BEGIN:vCard
        !          3044: FN:Roberto Tamassia
        !          3045: N:Tamassia;Roberto
        !          3046: EMAIL;INTERNET:rt@cs.brown.edu
        !          3047: END:vCard
        !          3048: </entity>
        !          3049:          <date datetype="datetime">
        !          3050:          2001-09-06
        !          3051:          </date>
        !          3052:       </contribute>
        !          3053:    </lifecycle>
        !          3054:    <metametadata>
        !          3055:       <contribute>
        !          3056:          <role>Contributor</role>
        !          3057:          <entity>
        !          3058: BEGIN:vCard
        !          3059: FN:Steve Hayes
        !          3060: N:Hayes;Steve
        !          3061: EMAIL;INTERNET:shayes@vt.edu
        !          3062: ORG:Virginia Tech;Computer Science
        !          3063: END:vCard
        !          3064: </entity>
        !          3065:          <date datetype="datetime">
        !          3066:          2001-09-06
        !          3067:          </date>
        !          3068:       </contribute>
        !          3069:       <language>en-US</language>
        !          3070:    </metametadata>
        !          3071:    <technical>
        !          3072:       <format>text/html</format>
        !          3073:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=114</location>
        !          3074:       <requirements>
        !          3075:          <type>Platform</type>
        !          3076:          <name>Java Virtual Machine</name>
        !          3077:       </requirements>
        !          3078:       <requirements>
        !          3079:          <type>Operating System</type>
        !          3080:          <name>All</name>
        !          3081:       </requirements>
        !          3082:       <requirements>
        !          3083:          <type>Programming Language</type>
        !          3084:          <name>Java</name>
        !          3085:       </requirements>
        !          3086:    </technical>
        !          3087:    <educational>
        !          3088:       <intendedenduserrole>Learner</intendedenduserrole>
        !          3089:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          3090:       <learningcontext>Higher Education</learningcontext>
        !          3091:       <learningcontext>Secondary Education</learningcontext>
        !          3092:    </educational>
        !          3093:    <classification>
        !          3094:       <purpose>Educational Objective</purpose>
        !          3095:       <taxonpath>
        !          3096:          <source>ACM Computer Science Curriculum</source>
        !          3097:          <taxon>
        !          3098:             <entry>Algorithms and Data Structures</entry>
        !          3099:          </taxon>
        !          3100:       </taxonpath>
        !          3101:       <description>The type of class that this resource is best suited for</description>
        !          3102:    </classification>
        !          3103:    <classification>
        !          3104:       <purpose>Discipline</purpose>
        !          3105:       <taxonpath>
        !          3106:          <source>ACM Computing Classification System</source>
        !          3107:          <taxon>
        !          3108:             <entry>Data</entry>
        !          3109:          </taxon>
        !          3110:          <taxon>
        !          3111:             <entry>Data Structures</entry>
        !          3112:          </taxon>
        !          3113:       </taxonpath>
        !          3114:       <description>The subject classification that best describes the resource</description>
        !          3115:    </classification>
        !          3116: </oai_ims>
        !          3117: </metadata>
        !          3118: </record>
        !          3119: <record>
        !          3120: <header>
        !          3121: <identifier>oai:CSTC:115</identifier>
        !          3122: <datestamp>2001-09-06</datestamp>
        !          3123: </header>
        !          3124: <metadata>
        !          3125: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          3126:    <general>
        !          3127:       <title>Travelling Salesman Problem solver</title>
        !          3128:       <catalogentry>
        !          3129:          <catalogue>CSTC</catalogue>
        !          3130:          <entry>115</entry>
        !          3131:       </catalogentry>
        !          3132:       <description> The travelling salesman problem is the problem of how to visit a number of towns and travel the shortest possible distance. This particular solution is based on an evolutionary approach using a genetic algorithm. Much of it is customizable.</description>
        !          3133:       <keywords>genetic</keywords>
        !          3134:       <keywords>algorithm</keywords>
        !          3135:    </general>
        !          3136:    <lifecycle>
        !          3137:       <status>Final</status>
        !          3138:       <contribute>
        !          3139:          <role>Author</role>
        !          3140:          <entity>
        !          3141: BEGIN:vCard
        !          3142: FN:Craig Beattie
        !          3143: N:Beattie;Craig
        !          3144: EMAIL;INTERNET:coneman@mindless.com
        !          3145: END:vCard
        !          3146: </entity>
        !          3147:          <date datetype="datetime">
        !          3148:          2001-09-06
        !          3149:          </date>
        !          3150:       </contribute>
        !          3151:    </lifecycle>
        !          3152:    <metametadata>
        !          3153:       <contribute>
        !          3154:          <role>Contributor</role>
        !          3155:          <entity>
        !          3156: BEGIN:vCard
        !          3157: FN:Vikram Narula
        !          3158: N:Narula;Vikram
        !          3159: EMAIL;INTERNET:vnarula@vt.edu
        !          3160: ORG:Virginia Tech;CS
        !          3161: END:vCard
        !          3162: </entity>
        !          3163:          <date datetype="datetime">
        !          3164:          2001-09-06
        !          3165:          </date>
        !          3166:       </contribute>
        !          3167:       <language>en-US</language>
        !          3168:    </metametadata>
        !          3169:    <technical>
        !          3170:       <format>text/html</format>
        !          3171:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=115</location>
        !          3172:    </technical>
        !          3173:    <educational>
        !          3174:       <intendedenduserrole>Learner</intendedenduserrole>
        !          3175:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          3176:       <learningcontext>Higher Education</learningcontext>
        !          3177:       <learningcontext>Secondary Education</learningcontext>
        !          3178:    </educational>
        !          3179:    <classification>
        !          3180:       <purpose>Educational Objective</purpose>
        !          3181:       <taxonpath>
        !          3182:          <source>ACM Computer Science Curriculum</source>
        !          3183:          <taxon>
        !          3184:             <entry>Algorithms and Data Structures</entry>
        !          3185:          </taxon>
        !          3186:       </taxonpath>
        !          3187:       <description>The type of class that this resource is best suited for</description>
        !          3188:    </classification>
        !          3189:    <classification>
        !          3190:       <purpose>Discipline</purpose>
        !          3191:       <taxonpath>
        !          3192:          <source>ACM Computing Classification System</source>
        !          3193:          <taxon>
        !          3194:             <entry>Software</entry>
        !          3195:          </taxon>
        !          3196:          <taxon>
        !          3197:             <entry>Miscellaneous</entry>
        !          3198:          </taxon>
        !          3199:       </taxonpath>
        !          3200:       <description>The subject classification that best describes the resource</description>
        !          3201:    </classification>
        !          3202: </oai_ims>
        !          3203: </metadata>
        !          3204: </record>
        !          3205: <record>
        !          3206: <header>
        !          3207: <identifier>oai:CSTC:116</identifier>
        !          3208: <datestamp>2001-09-06</datestamp>
        !          3209: </header>
        !          3210: <metadata>
        !          3211: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          3212:    <general>
        !          3213:       <title>Interactive Binary Tree</title>
        !          3214:       <catalogentry>
        !          3215:          <catalogue>CSTC</catalogue>
        !          3216:          <entry>116</entry>
        !          3217:       </catalogentry>
        !          3218:       <language>English</language>
        !          3219:       <description> Animates a binary tree. Insertion, search and deletion are shown.</description>
        !          3220:       <keywords>binary tree</keywords>
        !          3221:       <keywords>visualization</keywords>
        !          3222:    </general>
        !          3223:    <lifecycle>
        !          3224:       <status>Final</status>
        !          3225:       <contribute>
        !          3226:          <role>Author</role>
        !          3227:          <entity>
        !          3228: BEGIN:vCard
        !          3229: FN:Michael Goodrich
        !          3230: N:Goodrich;Michael
        !          3231: EMAIL;INTERNET:goodrich@cs.jhu.edu
        !          3232: END:vCard
        !          3233: </entity>
        !          3234:          <date datetype="datetime">
        !          3235:          2001-09-06
        !          3236:          </date>
        !          3237:       </contribute>
        !          3238:       <contribute>
        !          3239:          <role>Author</role>
        !          3240:          <entity>
        !          3241: BEGIN:vCard
        !          3242: FN:Roberto Tamassia
        !          3243: N:Tamassia;Roberto
        !          3244: EMAIL;INTERNET:rt@cs.brown.edu
        !          3245: END:vCard
        !          3246: </entity>
        !          3247:          <date datetype="datetime">
        !          3248:          2001-09-06
        !          3249:          </date>
        !          3250:       </contribute>
        !          3251:    </lifecycle>
        !          3252:    <metametadata>
        !          3253:       <contribute>
        !          3254:          <role>Contributor</role>
        !          3255:          <entity>
        !          3256: BEGIN:vCard
        !          3257: FN:Steve Hayes
        !          3258: N:Hayes;Steve
        !          3259: EMAIL;INTERNET:shayes@vt.edu
        !          3260: ORG:Virginia Tech;Computer Science
        !          3261: END:vCard
        !          3262: </entity>
        !          3263:          <date datetype="datetime">
        !          3264:          2001-09-06
        !          3265:          </date>
        !          3266:       </contribute>
        !          3267:       <language>en-US</language>
        !          3268:    </metametadata>
        !          3269:    <technical>
        !          3270:       <format>text/html</format>
        !          3271:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=116</location>
        !          3272:       <requirements>
        !          3273:          <type>Platform</type>
        !          3274:          <name>Java Virtual Machine</name>
        !          3275:       </requirements>
        !          3276:       <requirements>
        !          3277:          <type>Operating System</type>
        !          3278:          <name>All</name>
        !          3279:       </requirements>
        !          3280:       <requirements>
        !          3281:          <type>Programming Language</type>
        !          3282:          <name>Java</name>
        !          3283:       </requirements>
        !          3284:    </technical>
        !          3285:    <educational>
        !          3286:       <intendedenduserrole>Learner</intendedenduserrole>
        !          3287:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          3288:       <learningcontext>Higher Education</learningcontext>
        !          3289:       <learningcontext>Secondary Education</learningcontext>
        !          3290:    </educational>
        !          3291:    <classification>
        !          3292:       <purpose>Educational Objective</purpose>
        !          3293:       <taxonpath>
        !          3294:          <source>ACM Computer Science Curriculum</source>
        !          3295:          <taxon>
        !          3296:             <entry>Algorithms and Data Structures</entry>
        !          3297:          </taxon>
        !          3298:       </taxonpath>
        !          3299:       <description>The type of class that this resource is best suited for</description>
        !          3300:    </classification>
        !          3301:    <classification>
        !          3302:       <purpose>Discipline</purpose>
        !          3303:       <taxonpath>
        !          3304:          <source>ACM Computing Classification System</source>
        !          3305:          <taxon>
        !          3306:             <entry>Data</entry>
        !          3307:          </taxon>
        !          3308:          <taxon>
        !          3309:             <entry>Data Structures</entry>
        !          3310:          </taxon>
        !          3311:       </taxonpath>
        !          3312:       <description>The subject classification that best describes the resource</description>
        !          3313:    </classification>
        !          3314: </oai_ims>
        !          3315: </metadata>
        !          3316: </record>
        !          3317: <record>
        !          3318: <header>
        !          3319: <identifier>oai:CSTC:117</identifier>
        !          3320: <datestamp>2001-09-06</datestamp>
        !          3321: </header>
        !          3322: <metadata>
        !          3323: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          3324:    <general>
        !          3325:       <title>XFS Demo (RW1-1)</title>
        !          3326:       <catalogentry>
        !          3327:          <catalogue>CSTC</catalogue>
        !          3328:          <entry>117</entry>
        !          3329:       </catalogentry>
        !          3330:       <description> Demo of key features of the xFS distributed file system.</description>
        !          3331:       <keywords>file</keywords>
        !          3332:       <keywords>system</keywords>
        !          3333:       <keywords>network</keywords>
        !          3334:       <keywords>distributed</keywords>
        !          3335:    </general>
        !          3336:    <lifecycle>
        !          3337:       <status>Final</status>
        !          3338:       <contribute>
        !          3339:          <role>Author</role>
        !          3340:          <entity>
        !          3341: BEGIN:vCard
        !          3342: FN:Randy Wang
        !          3343: N:Wang;Randy
        !          3344: EMAIL;INTERNET:rywang@cs.berkeley.edu
        !          3345: END:vCard
        !          3346: </entity>
        !          3347:          <date datetype="datetime">
        !          3348:          2001-09-06
        !          3349:          </date>
        !          3350:       </contribute>
        !          3351:    </lifecycle>
        !          3352:    <metametadata>
        !          3353:       <contribute>
        !          3354:          <role>Contributor</role>
        !          3355:          <entity>
        !          3356: BEGIN:vCard
        !          3357: FN:Vikram Narula
        !          3358: N:Narula;Vikram
        !          3359: EMAIL;INTERNET:vnarula@vt.edu
        !          3360: ORG:Virginia Tech;CS
        !          3361: END:vCard
        !          3362: </entity>
        !          3363:          <date datetype="datetime">
        !          3364:          2001-09-06
        !          3365:          </date>
        !          3366:       </contribute>
        !          3367:       <language>en-US</language>
        !          3368:    </metametadata>
        !          3369:    <technical>
        !          3370:       <format>text/html</format>
        !          3371:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=117</location>
        !          3372:    </technical>
        !          3373:    <educational>
        !          3374:       <intendedenduserrole>Learner</intendedenduserrole>
        !          3375:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          3376:       <learningcontext>Higher Education</learningcontext>
        !          3377:       <learningcontext>Secondary Education</learningcontext>
        !          3378:    </educational>
        !          3379:    <classification>
        !          3380:       <purpose>Educational Objective</purpose>
        !          3381:       <taxonpath>
        !          3382:          <source>ACM Computer Science Curriculum</source>
        !          3383:          <taxon>
        !          3384:             <entry>Software Methodology and Engineering</entry>
        !          3385:          </taxon>
        !          3386:       </taxonpath>
        !          3387:       <description>The type of class that this resource is best suited for</description>
        !          3388:    </classification>
        !          3389:    <classification>
        !          3390:       <purpose>Discipline</purpose>
        !          3391:       <taxonpath>
        !          3392:          <source>ACM Computing Classification System</source>
        !          3393:          <taxon>
        !          3394:             <entry>Computer Systems Organization</entry>
        !          3395:          </taxon>
        !          3396:          <taxon>
        !          3397:             <entry>Computer-Communication Networks</entry>
        !          3398:          </taxon>
        !          3399:       </taxonpath>
        !          3400:       <description>The subject classification that best describes the resource</description>
        !          3401:    </classification>
        !          3402: </oai_ims>
        !          3403: </metadata>
        !          3404: </record>
        !          3405: <record>
        !          3406: <header>
        !          3407: <identifier>oai:CSTC:118</identifier>
        !          3408: <datestamp>2001-09-06</datestamp>
        !          3409: </header>
        !          3410: <metadata>
        !          3411: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          3412:    <general>
        !          3413:       <title>Interactive AVL Tree</title>
        !          3414:       <catalogentry>
        !          3415:          <catalogue>CSTC</catalogue>
        !          3416:          <entry>118</entry>
        !          3417:       </catalogentry>
        !          3418:       <language>English</language>
        !          3419:       <description> Inputs
        !          3420: Only positive, single to double digit integers are allowed (e.g. "37" or "3"). Incorrect types of data are ignored by the applet.
        !          3421: Insert
        !          3422: Insert an integer in the binary tree. Node comparisons will appear in the bottom panel of the applet.
        !          3423: Search
        !          3424: Search for an integer in the binary tree. Node comparisons will appear in the bottom panel of the applet, including whether or not the requested node exists within the binary tree.
        !          3425: Delete
        !          3426: Delete an integer in the binary tree. Node comparisons will appear in the bottom panel of the applet, including whether or not the requested node can be deleted from the binary tree (i.e. if it exists within the tree or not).</description>
        !          3427:       <keywords>AVL tree</keywords>
        !          3428:       <keywords>tree</keywords>
        !          3429:       <keywords>visualization</keywords>
        !          3430:    </general>
        !          3431:    <lifecycle>
        !          3432:       <status>Final</status>
        !          3433:       <contribute>
        !          3434:          <role>Author</role>
        !          3435:          <entity>
        !          3436: BEGIN:vCard
        !          3437: FN:Michael Goodrich
        !          3438: N:Goodrich;Michael
        !          3439: EMAIL;INTERNET:goodrich@cs.jhu.edu
        !          3440: END:vCard
        !          3441: </entity>
        !          3442:          <date datetype="datetime">
        !          3443:          2001-09-06
        !          3444:          </date>
        !          3445:       </contribute>
        !          3446:       <contribute>
        !          3447:          <role>Author</role>
        !          3448:          <entity>
        !          3449: BEGIN:vCard
        !          3450: FN:Roberto Tamassia
        !          3451: N:Tamassia;Roberto
        !          3452: EMAIL;INTERNET:rt@cs.brown.edu
        !          3453: END:vCard
        !          3454: </entity>
        !          3455:          <date datetype="datetime">
        !          3456:          2001-09-06
        !          3457:          </date>
        !          3458:       </contribute>
        !          3459:    </lifecycle>
        !          3460:    <metametadata>
        !          3461:       <contribute>
        !          3462:          <role>Contributor</role>
        !          3463:          <entity>
        !          3464: BEGIN:vCard
        !          3465: FN:Steve Hayes
        !          3466: N:Hayes;Steve
        !          3467: EMAIL;INTERNET:shayes@vt.edu
        !          3468: ORG:Virginia Tech;Computer Science
        !          3469: END:vCard
        !          3470: </entity>
        !          3471:          <date datetype="datetime">
        !          3472:          2001-09-06
        !          3473:          </date>
        !          3474:       </contribute>
        !          3475:       <language>en-US</language>
        !          3476:    </metametadata>
        !          3477:    <technical>
        !          3478:       <format>text/html</format>
        !          3479:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=118</location>
        !          3480:       <requirements>
        !          3481:          <type>Platform</type>
        !          3482:          <name>Java Virtual Machine</name>
        !          3483:       </requirements>
        !          3484:       <requirements>
        !          3485:          <type>Operating System</type>
        !          3486:          <name>All</name>
        !          3487:       </requirements>
        !          3488:       <requirements>
        !          3489:          <type>Programming Language</type>
        !          3490:          <name>Java</name>
        !          3491:       </requirements>
        !          3492:    </technical>
        !          3493:    <educational>
        !          3494:       <intendedenduserrole>Learner</intendedenduserrole>
        !          3495:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          3496:       <learningcontext>Higher Education</learningcontext>
        !          3497:       <learningcontext>Secondary Education</learningcontext>
        !          3498:    </educational>
        !          3499:    <classification>
        !          3500:       <purpose>Educational Objective</purpose>
        !          3501:       <taxonpath>
        !          3502:          <source>ACM Computer Science Curriculum</source>
        !          3503:          <taxon>
        !          3504:             <entry>Algorithms and Data Structures</entry>
        !          3505:          </taxon>
        !          3506:       </taxonpath>
        !          3507:       <description>The type of class that this resource is best suited for</description>
        !          3508:    </classification>
        !          3509:    <classification>
        !          3510:       <purpose>Discipline</purpose>
        !          3511:       <taxonpath>
        !          3512:          <source>ACM Computing Classification System</source>
        !          3513:          <taxon>
        !          3514:             <entry>Data</entry>
        !          3515:          </taxon>
        !          3516:          <taxon>
        !          3517:             <entry>Data Structures</entry>
        !          3518:          </taxon>
        !          3519:       </taxonpath>
        !          3520:       <description>The subject classification that best describes the resource</description>
        !          3521:    </classification>
        !          3522: </oai_ims>
        !          3523: </metadata>
        !          3524: </record>
        !          3525: <record>
        !          3526: <header>
        !          3527: <identifier>oai:CSTC:119</identifier>
        !          3528: <datestamp>2001-09-06</datestamp>
        !          3529: </header>
        !          3530: <metadata>
        !          3531: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          3532:    <general>
        !          3533:       <title>Neural Networks with Java (JF1-1)</title>
        !          3534:       <catalogentry>
        !          3535:          <catalogue>CSTC</catalogue>
        !          3536:          <entry>119</entry>
        !          3537:       </catalogentry>
        !          3538:       <description> This applet demonstrates a Kohonen Feature Map neural net in three-dimensional space.</description>
        !          3539:       <keywords>algorithm</keywords>
        !          3540:       <keywords>problem</keywords>
        !          3541:       <keywords>Kohonen Feature Map</keywords>
        !          3542:    </general>
        !          3543:    <lifecycle>
        !          3544:       <status>Final</status>
        !          3545:       <contribute>
        !          3546:          <role>Author</role>
        !          3547:          <entity>
        !          3548: BEGIN:vCard
        !          3549: FN:Jochen Fr&#246;hlich
        !          3550: N:Fr&#246;hlich;Jochen
        !          3551: EMAIL;INTERNET:jf@stuttgart.netsurf.de
        !          3552: END:vCard
        !          3553: </entity>
        !          3554:          <date datetype="datetime">
        !          3555:          2001-09-06
        !          3556:          </date>
        !          3557:       </contribute>
        !          3558:    </lifecycle>
        !          3559:    <metametadata>
        !          3560:       <contribute>
        !          3561:          <role>Contributor</role>
        !          3562:          <entity>
        !          3563: BEGIN:vCard
        !          3564: FN:Vikram Narula
        !          3565: N:Narula;Vikram
        !          3566: EMAIL;INTERNET:vnarula@vt.edu
        !          3567: ORG:Virginia Tech;CS
        !          3568: END:vCard
        !          3569: </entity>
        !          3570:          <date datetype="datetime">
        !          3571:          2001-09-06
        !          3572:          </date>
        !          3573:       </contribute>
        !          3574:       <language>en-US</language>
        !          3575:    </metametadata>
        !          3576:    <technical>
        !          3577:       <format>text/html</format>
        !          3578:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=119</location>
        !          3579:    </technical>
        !          3580:    <educational>
        !          3581:       <intendedenduserrole>Learner</intendedenduserrole>
        !          3582:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          3583:       <learningcontext>Higher Education</learningcontext>
        !          3584:       <learningcontext>Secondary Education</learningcontext>
        !          3585:    </educational>
        !          3586:    <classification>
        !          3587:       <purpose>Educational Objective</purpose>
        !          3588:       <taxonpath>
        !          3589:          <source>ACM Computer Science Curriculum</source>
        !          3590:          <taxon>
        !          3591:             <entry>Artificial Intelligence and Robotics</entry>
        !          3592:          </taxon>
        !          3593:       </taxonpath>
        !          3594:       <description>The type of class that this resource is best suited for</description>
        !          3595:    </classification>
        !          3596:    <classification>
        !          3597:       <purpose>Discipline</purpose>
        !          3598:       <taxonpath>
        !          3599:          <source>ACM Computing Classification System</source>
        !          3600:          <taxon>
        !          3601:             <entry>Computing Methodologies</entry>
        !          3602:          </taxon>
        !          3603:          <taxon>
        !          3604:             <entry>Artificial Intelligence</entry>
        !          3605:          </taxon>
        !          3606:       </taxonpath>
        !          3607:       <description>The subject classification that best describes the resource</description>
        !          3608:    </classification>
        !          3609: </oai_ims>
        !          3610: </metadata>
        !          3611: </record>
        !          3612: <record>
        !          3613: <header>
        !          3614: <identifier>oai:CSTC:120</identifier>
        !          3615: <datestamp>2001-09-06</datestamp>
        !          3616: </header>
        !          3617: <metadata>
        !          3618: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          3619:    <general>
        !          3620:       <title>Pattern Matching</title>
        !          3621:       <catalogentry>
        !          3622:          <catalogue>CSTC</catalogue>
        !          3623:          <entry>120</entry>
        !          3624:       </catalogentry>
        !          3625:       <language>English</language>
        !          3626:       <description> The pattern matching applet is an interactive demonstration of the Knuth-Morris-Pratt and Boyer-Moore string matching algorithms.</description>
        !          3627:       <keywords>pattern matching</keywords>
        !          3628:    </general>
        !          3629:    <lifecycle>
        !          3630:       <status>Final</status>
        !          3631:       <contribute>
        !          3632:          <role>Author</role>
        !          3633:          <entity>
        !          3634: BEGIN:vCard
        !          3635: FN:Michael Goodrich
        !          3636: N:Goodrich;Michael
        !          3637: EMAIL;INTERNET:goodrich@cs.jhu.edu
        !          3638: END:vCard
        !          3639: </entity>
        !          3640:          <date datetype="datetime">
        !          3641:          2001-09-06
        !          3642:          </date>
        !          3643:       </contribute>
        !          3644:       <contribute>
        !          3645:          <role>Author</role>
        !          3646:          <entity>
        !          3647: BEGIN:vCard
        !          3648: FN:Roberto Tamassia
        !          3649: N:Tamassia;Roberto
        !          3650: EMAIL;INTERNET:rt@cs.brown.edu
        !          3651: END:vCard
        !          3652: </entity>
        !          3653:          <date datetype="datetime">
        !          3654:          2001-09-06
        !          3655:          </date>
        !          3656:       </contribute>
        !          3657:    </lifecycle>
        !          3658:    <metametadata>
        !          3659:       <contribute>
        !          3660:          <role>Contributor</role>
        !          3661:          <entity>
        !          3662: BEGIN:vCard
        !          3663: FN:Steve Hayes
        !          3664: N:Hayes;Steve
        !          3665: EMAIL;INTERNET:shayes@vt.edu
        !          3666: ORG:Virginia Tech;Computer Science
        !          3667: END:vCard
        !          3668: </entity>
        !          3669:          <date datetype="datetime">
        !          3670:          2001-09-06
        !          3671:          </date>
        !          3672:       </contribute>
        !          3673:       <language>en-US</language>
        !          3674:    </metametadata>
        !          3675:    <technical>
        !          3676:       <format>text/html</format>
        !          3677:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=120</location>
        !          3678:       <requirements>
        !          3679:          <type>Platform</type>
        !          3680:          <name>Java Virtual Machine</name>
        !          3681:       </requirements>
        !          3682:       <requirements>
        !          3683:          <type>Operating System</type>
        !          3684:          <name>All</name>
        !          3685:       </requirements>
        !          3686:       <requirements>
        !          3687:          <type>Programming Language</type>
        !          3688:          <name>Java</name>
        !          3689:       </requirements>
        !          3690:    </technical>
        !          3691:    <educational>
        !          3692:       <intendedenduserrole>Learner</intendedenduserrole>
        !          3693:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          3694:       <learningcontext>Higher Education</learningcontext>
        !          3695:       <learningcontext>Secondary Education</learningcontext>
        !          3696:    </educational>
        !          3697:    <classification>
        !          3698:       <purpose>Educational Objective</purpose>
        !          3699:       <taxonpath>
        !          3700:          <source>ACM Computer Science Curriculum</source>
        !          3701:          <taxon>
        !          3702:             <entry>Algorithms and Data Structures</entry>
        !          3703:          </taxon>
        !          3704:       </taxonpath>
        !          3705:       <description>The type of class that this resource is best suited for</description>
        !          3706:    </classification>
        !          3707:    <classification>
        !          3708:       <purpose>Discipline</purpose>
        !          3709:       <taxonpath>
        !          3710:          <source>ACM Computing Classification System</source>
        !          3711:          <taxon>
        !          3712:             <entry>Software</entry>
        !          3713:          </taxon>
        !          3714:          <taxon>
        !          3715:             <entry>Programming Techniques</entry>
        !          3716:          </taxon>
        !          3717:       </taxonpath>
        !          3718:       <description>The subject classification that best describes the resource</description>
        !          3719:    </classification>
        !          3720: </oai_ims>
        !          3721: </metadata>
        !          3722: </record>
        !          3723: <record>
        !          3724: <header>
        !          3725: <identifier>oai:CSTC:121</identifier>
        !          3726: <datestamp>2001-09-06</datestamp>
        !          3727: </header>
        !          3728: <metadata>
        !          3729: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          3730:    <general>
        !          3731:       <title>Computer Simulator</title>
        !          3732:       <catalogentry>
        !          3733:          <catalogue>CSTC</catalogue>
        !          3734:          <entry>121</entry>
        !          3735:       </catalogentry>
        !          3736:       <description> The above Java Applet simulates a simple computer consisting of 32 8 bit memory words. The computer operates by fetching a word in memory pointed to by the Program Counter (PC) into the Instruction Register (IR)and then executing this instruction. The Program Counter is then incremented by one and the process is repeated until a Halt instruction is fetched at which time the computer stops and the binary number in the Accumulator (ACC)can be read.</description>
        !          3737:       <keywords>computer</keywords>
        !          3738:       <keywords>applet</keywords>
        !          3739:    </general>
        !          3740:    <lifecycle>
        !          3741:       <status>Final</status>
        !          3742:       <contribute>
        !          3743:          <role>Author</role>
        !          3744:          <entity>
        !          3745: BEGIN:vCard
        !          3746: FN:Barry Stern
        !          3747: N:Stern;Barry
        !          3748: EMAIL;INTERNET:bstern@in.net
        !          3749: END:vCard
        !          3750: </entity>
        !          3751:          <date datetype="datetime">
        !          3752:          2001-09-06
        !          3753:          </date>
        !          3754:       </contribute>
        !          3755:    </lifecycle>
        !          3756:    <metametadata>
        !          3757:       <contribute>
        !          3758:          <role>Contributor</role>
        !          3759:          <entity>
        !          3760: BEGIN:vCard
        !          3761: FN:Vikram Narula
        !          3762: N:Narula;Vikram
        !          3763: EMAIL;INTERNET:vnarula@vt.edu
        !          3764: ORG:Virginia Tech;CS
        !          3765: END:vCard
        !          3766: </entity>
        !          3767:          <date datetype="datetime">
        !          3768:          2001-09-06
        !          3769:          </date>
        !          3770:       </contribute>
        !          3771:       <language>en-US</language>
        !          3772:    </metametadata>
        !          3773:    <technical>
        !          3774:       <format>text/html</format>
        !          3775:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=121</location>
        !          3776:    </technical>
        !          3777:    <educational>
        !          3778:       <intendedenduserrole>Learner</intendedenduserrole>
        !          3779:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          3780:       <learningcontext>Higher Education</learningcontext>
        !          3781:       <learningcontext>Secondary Education</learningcontext>
        !          3782:    </educational>
        !          3783:    <classification>
        !          3784:       <purpose>Educational Objective</purpose>
        !          3785:       <taxonpath>
        !          3786:          <source>ACM Computer Science Curriculum</source>
        !          3787:          <taxon>
        !          3788:             <entry>Software Methodology and Engineering</entry>
        !          3789:          </taxon>
        !          3790:       </taxonpath>
        !          3791:       <description>The type of class that this resource is best suited for</description>
        !          3792:    </classification>
        !          3793:    <classification>
        !          3794:       <purpose>Discipline</purpose>
        !          3795:       <taxonpath>
        !          3796:          <source>ACM Computing Classification System</source>
        !          3797:          <taxon>
        !          3798:             <entry>Hardware</entry>
        !          3799:          </taxon>
        !          3800:          <taxon>
        !          3801:             <entry>Miscellaneous</entry>
        !          3802:          </taxon>
        !          3803:       </taxonpath>
        !          3804:       <description>The subject classification that best describes the resource</description>
        !          3805:    </classification>
        !          3806: </oai_ims>
        !          3807: </metadata>
        !          3808: </record>
        !          3809: <record>
        !          3810: <header>
        !          3811: <identifier>oai:CSTC:122</identifier>
        !          3812: <datestamp>2001-09-06</datestamp>
        !          3813: </header>
        !          3814: <metadata>
        !          3815: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          3816:    <general>
        !          3817:       <title>PDP-8 Computer</title>
        !          3818:       <catalogentry>
        !          3819:          <catalogue>CSTC</catalogue>
        !          3820:          <entry>122</entry>
        !          3821:       </catalogentry>
        !          3822:       <description> PDP-8 computer simulator.</description>
        !          3823:       <keywords>PDP-8</keywords>
        !          3824:       <keywords>computer</keywords>
        !          3825:       <keywords>simulator</keywords>
        !          3826:    </general>
        !          3827:    <lifecycle>
        !          3828:       <status>Final</status>
        !          3829:       <contribute>
        !          3830:          <role>Author</role>
        !          3831:          <entity>
        !          3832: BEGIN:vCard
        !          3833: FN:Barry Stern
        !          3834: N:Stern;Barry
        !          3835: EMAIL;INTERNET:bstern@in.net
        !          3836: END:vCard
        !          3837: </entity>
        !          3838:          <date datetype="datetime">
        !          3839:          2001-09-06
        !          3840:          </date>
        !          3841:       </contribute>
        !          3842:    </lifecycle>
        !          3843:    <metametadata>
        !          3844:       <contribute>
        !          3845:          <role>Contributor</role>
        !          3846:          <entity>
        !          3847: BEGIN:vCard
        !          3848: FN:Vikram Narula
        !          3849: N:Narula;Vikram
        !          3850: EMAIL;INTERNET:vnarula@vt.edu
        !          3851: ORG:Virginia Tech;CS
        !          3852: END:vCard
        !          3853: </entity>
        !          3854:          <date datetype="datetime">
        !          3855:          2001-09-06
        !          3856:          </date>
        !          3857:       </contribute>
        !          3858:       <language>en-US</language>
        !          3859:    </metametadata>
        !          3860:    <technical>
        !          3861:       <format>text/html</format>
        !          3862:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=122</location>
        !          3863:    </technical>
        !          3864:    <educational>
        !          3865:       <intendedenduserrole>Learner</intendedenduserrole>
        !          3866:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          3867:       <learningcontext>Higher Education</learningcontext>
        !          3868:       <learningcontext>Secondary Education</learningcontext>
        !          3869:    </educational>
        !          3870:    <classification>
        !          3871:       <purpose>Educational Objective</purpose>
        !          3872:       <taxonpath>
        !          3873:          <source>ACM Computer Science Curriculum</source>
        !          3874:          <taxon>
        !          3875:             <entry>Software Methodology and Engineering</entry>
        !          3876:          </taxon>
        !          3877:       </taxonpath>
        !          3878:       <description>The type of class that this resource is best suited for</description>
        !          3879:    </classification>
        !          3880:    <classification>
        !          3881:       <purpose>Discipline</purpose>
        !          3882:       <taxonpath>
        !          3883:          <source>ACM Computing Classification System</source>
        !          3884:          <taxon>
        !          3885:             <entry>Hardware</entry>
        !          3886:          </taxon>
        !          3887:          <taxon>
        !          3888:             <entry>Miscellaneous</entry>
        !          3889:          </taxon>
        !          3890:       </taxonpath>
        !          3891:       <description>The subject classification that best describes the resource</description>
        !          3892:    </classification>
        !          3893: </oai_ims>
        !          3894: </metadata>
        !          3895: </record>
        !          3896: <record>
        !          3897: <header>
        !          3898: <identifier>oai:CSTC:123</identifier>
        !          3899: <datestamp>2001-09-06</datestamp>
        !          3900: </header>
        !          3901: <metadata>
        !          3902: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          3903:    <general>
        !          3904:       <title>PR k-d Tree Demo</title>
        !          3905:       <catalogentry>
        !          3906:          <catalogue>CSTC</catalogue>
        !          3907:          <entry>123</entry>
        !          3908:       </catalogentry>
        !          3909:       <language>English</language>
        !          3910:       <description> Recursively decompose the underlying space into two equal area blocks until each block contains at most one data point. The partition axes are cycled in the order x , y , x , y , ... The partition positions are independent of the data.</description>
        !          3911:       <keywords>k-d</keywords>
        !          3912:       <keywords>k-d tree</keywords>
        !          3913:       <keywords>PR k-d tree</keywords>
        !          3914:       <keywords>tree</keywords>
        !          3915:       <keywords>visualization</keywords>
        !          3916:    </general>
        !          3917:    <lifecycle>
        !          3918:       <status>Final</status>
        !          3919:       <contribute>
        !          3920:          <role>Author</role>
        !          3921:          <entity>
        !          3922: BEGIN:vCard
        !          3923: FN:Frantisek Brabec
        !          3924: N:Brabec;Frantisek
        !          3925: EMAIL;INTERNET:brabec@cs.umd.edu
        !          3926: END:vCard
        !          3927: </entity>
        !          3928:          <date datetype="datetime">
        !          3929:          2001-09-06
        !          3930:          </date>
        !          3931:       </contribute>
        !          3932:       <contribute>
        !          3933:          <role>Author</role>
        !          3934:          <entity>
        !          3935: BEGIN:vCard
        !          3936: FN:Hanan Samet
        !          3937: N:Samet;Hanan
        !          3938: EMAIL;INTERNET:hjs@cs.umd.edu
        !          3939: END:vCard
        !          3940: </entity>
        !          3941:          <date datetype="datetime">
        !          3942:          2001-09-06
        !          3943:          </date>
        !          3944:       </contribute>
        !          3945:    </lifecycle>
        !          3946:    <metametadata>
        !          3947:       <contribute>
        !          3948:          <role>Contributor</role>
        !          3949:          <entity>
        !          3950: BEGIN:vCard
        !          3951: FN:Steve Hayes
        !          3952: N:Hayes;Steve
        !          3953: EMAIL;INTERNET:shayes@vt.edu
        !          3954: ORG:Virginia Tech;Computer Science
        !          3955: END:vCard
        !          3956: </entity>
        !          3957:          <date datetype="datetime">
        !          3958:          2001-09-06
        !          3959:          </date>
        !          3960:       </contribute>
        !          3961:       <language>en-US</language>
        !          3962:    </metametadata>
        !          3963:    <technical>
        !          3964:       <format>text/html</format>
        !          3965:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=123</location>
        !          3966:       <requirements>
        !          3967:          <type>Platform</type>
        !          3968:          <name>Java Virtual Machine</name>
        !          3969:       </requirements>
        !          3970:       <requirements>
        !          3971:          <type>Operating System</type>
        !          3972:          <name>All</name>
        !          3973:       </requirements>
        !          3974:       <requirements>
        !          3975:          <type>Programming Language</type>
        !          3976:          <name>Java</name>
        !          3977:       </requirements>
        !          3978:    </technical>
        !          3979:    <educational>
        !          3980:       <intendedenduserrole>Learner</intendedenduserrole>
        !          3981:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          3982:       <learningcontext>Higher Education</learningcontext>
        !          3983:       <learningcontext>Secondary Education</learningcontext>
        !          3984:    </educational>
        !          3985:    <classification>
        !          3986:       <purpose>Educational Objective</purpose>
        !          3987:       <taxonpath>
        !          3988:          <source>ACM Computer Science Curriculum</source>
        !          3989:          <taxon>
        !          3990:             <entry>Algorithms and Data Structures</entry>
        !          3991:          </taxon>
        !          3992:       </taxonpath>
        !          3993:       <description>The type of class that this resource is best suited for</description>
        !          3994:    </classification>
        !          3995:    <classification>
        !          3996:       <purpose>Discipline</purpose>
        !          3997:       <taxonpath>
        !          3998:          <source>ACM Computing Classification System</source>
        !          3999:          <taxon>
        !          4000:             <entry>Data</entry>
        !          4001:          </taxon>
        !          4002:          <taxon>
        !          4003:             <entry>Data Structures</entry>
        !          4004:          </taxon>
        !          4005:       </taxonpath>
        !          4006:       <description>The subject classification that best describes the resource</description>
        !          4007:    </classification>
        !          4008: </oai_ims>
        !          4009: </metadata>
        !          4010: </record>
        !          4011: <record>
        !          4012: <header>
        !          4013: <identifier>oai:CSTC:124</identifier>
        !          4014: <datestamp>2001-09-06</datestamp>
        !          4015: </header>
        !          4016: <metadata>
        !          4017: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          4018:    <general>
        !          4019:       <title>PR Quadtree Demo</title>
        !          4020:       <catalogentry>
        !          4021:          <catalogue>CSTC</catalogue>
        !          4022:          <entry>124</entry>
        !          4023:       </catalogentry>
        !          4024:       <language>English</language>
        !          4025:       <description> Recursively decompose the underlying space into four equal area blocks until each block contains at most one data point. The partition positions are independent of the data.</description>
        !          4026:       <keywords>tree</keywords>
        !          4027:       <keywords>quadtree</keywords>
        !          4028:       <keywords>visualization</keywords>
        !          4029:    </general>
        !          4030:    <lifecycle>
        !          4031:       <status>Final</status>
        !          4032:       <contribute>
        !          4033:          <role>Author</role>
        !          4034:          <entity>
        !          4035: BEGIN:vCard
        !          4036: FN:Frantisek Brabec
        !          4037: N:Brabec;Frantisek
        !          4038: EMAIL;INTERNET:brabec@cs.umd.edu
        !          4039: END:vCard
        !          4040: </entity>
        !          4041:          <date datetype="datetime">
        !          4042:          2001-09-06
        !          4043:          </date>
        !          4044:       </contribute>
        !          4045:       <contribute>
        !          4046:          <role>Author</role>
        !          4047:          <entity>
        !          4048: BEGIN:vCard
        !          4049: FN:Hanan Samet
        !          4050: N:Samet;Hanan
        !          4051: EMAIL;INTERNET:hjs@cs.umd.edu
        !          4052: END:vCard
        !          4053: </entity>
        !          4054:          <date datetype="datetime">
        !          4055:          2001-09-06
        !          4056:          </date>
        !          4057:       </contribute>
        !          4058:    </lifecycle>
        !          4059:    <metametadata>
        !          4060:       <contribute>
        !          4061:          <role>Contributor</role>
        !          4062:          <entity>
        !          4063: BEGIN:vCard
        !          4064: FN:Steve Hayes
        !          4065: N:Hayes;Steve
        !          4066: EMAIL;INTERNET:shayes@vt.edu
        !          4067: ORG:Virginia Tech;Computer Science
        !          4068: END:vCard
        !          4069: </entity>
        !          4070:          <date datetype="datetime">
        !          4071:          2001-09-06
        !          4072:          </date>
        !          4073:       </contribute>
        !          4074:       <language>en-US</language>
        !          4075:    </metametadata>
        !          4076:    <technical>
        !          4077:       <format>text/html</format>
        !          4078:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=124</location>
        !          4079:       <requirements>
        !          4080:          <type>Platform</type>
        !          4081:          <name>Java Virtual Machine</name>
        !          4082:       </requirements>
        !          4083:       <requirements>
        !          4084:          <type>Operating System</type>
        !          4085:          <name>All</name>
        !          4086:       </requirements>
        !          4087:       <requirements>
        !          4088:          <type>Programming Language</type>
        !          4089:          <name>Java</name>
        !          4090:       </requirements>
        !          4091:    </technical>
        !          4092:    <educational>
        !          4093:       <intendedenduserrole>Learner</intendedenduserrole>
        !          4094:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          4095:       <learningcontext>Higher Education</learningcontext>
        !          4096:       <learningcontext>Secondary Education</learningcontext>
        !          4097:    </educational>
        !          4098:    <classification>
        !          4099:       <purpose>Educational Objective</purpose>
        !          4100:       <taxonpath>
        !          4101:          <source>ACM Computer Science Curriculum</source>
        !          4102:          <taxon>
        !          4103:             <entry>Algorithms and Data Structures</entry>
        !          4104:          </taxon>
        !          4105:       </taxonpath>
        !          4106:       <description>The type of class that this resource is best suited for</description>
        !          4107:    </classification>
        !          4108:    <classification>
        !          4109:       <purpose>Discipline</purpose>
        !          4110:       <taxonpath>
        !          4111:          <source>ACM Computing Classification System</source>
        !          4112:          <taxon>
        !          4113:             <entry>Data</entry>
        !          4114:          </taxon>
        !          4115:          <taxon>
        !          4116:             <entry>Data Structures</entry>
        !          4117:          </taxon>
        !          4118:       </taxonpath>
        !          4119:       <description>The subject classification that best describes the resource</description>
        !          4120:    </classification>
        !          4121: </oai_ims>
        !          4122: </metadata>
        !          4123: </record>
        !          4124: <record>
        !          4125: <header>
        !          4126: <identifier>oai:CSTC:125</identifier>
        !          4127: <datestamp>2001-09-06</datestamp>
        !          4128: </header>
        !          4129: <metadata>
        !          4130: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          4131:    <general>
        !          4132:       <title>BSP Tree Visualizer</title>
        !          4133:       <catalogentry>
        !          4134:          <catalogue>CSTC</catalogue>
        !          4135:          <entry>125</entry>
        !          4136:       </catalogentry>
        !          4137:       <description> This applet demonstrates how BSP trees work, and includes a demonstration of how they are used in Doom-style games to render pseudo-3D scenes.</description>
        !          4138:       <keywords>BSP</keywords>
        !          4139:       <keywords>tree</keywords>
        !          4140:       <keywords>data</keywords>
        !          4141:       <keywords>structure</keywords>
        !          4142:    </general>
        !          4143:    <lifecycle>
        !          4144:       <status>Final</status>
        !          4145:       <contribute>
        !          4146:          <role>Author</role>
        !          4147:          <entity>
        !          4148: BEGIN:vCard
        !          4149: FN:Paton Lewis
        !          4150: N:Lewis;Paton
        !          4151: EMAIL;INTERNET:pjl@symbolcraft.com
        !          4152: END:vCard
        !          4153: </entity>
        !          4154:          <date datetype="datetime">
        !          4155:          2001-09-06
        !          4156:          </date>
        !          4157:       </contribute>
        !          4158:    </lifecycle>
        !          4159:    <metametadata>
        !          4160:       <contribute>
        !          4161:          <role>Contributor</role>
        !          4162:          <entity>
        !          4163: BEGIN:vCard
        !          4164: FN:Vikram Narula
        !          4165: N:Narula;Vikram
        !          4166: EMAIL;INTERNET:vnarula@vt.edu
        !          4167: ORG:Virginia Tech;CS
        !          4168: END:vCard
        !          4169: </entity>
        !          4170:          <date datetype="datetime">
        !          4171:          2001-09-06
        !          4172:          </date>
        !          4173:       </contribute>
        !          4174:       <language>en-US</language>
        !          4175:    </metametadata>
        !          4176:    <technical>
        !          4177:       <format>text/html</format>
        !          4178:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=125</location>
        !          4179:    </technical>
        !          4180:    <educational>
        !          4181:       <intendedenduserrole>Learner</intendedenduserrole>
        !          4182:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          4183:       <learningcontext>Higher Education</learningcontext>
        !          4184:       <learningcontext>Secondary Education</learningcontext>
        !          4185:    </educational>
        !          4186:    <rights>
        !          4187:       <copyrightandotherrestrictions>yes</copyrightandotherrestrictions>
        !          4188:       <description>Copyright &#169; 1998-2001 by Paton J. Lewis. All rights reserved</description>
        !          4189:    </rights>
        !          4190:    <classification>
        !          4191:       <purpose>Educational Objective</purpose>
        !          4192:       <taxonpath>
        !          4193:          <source>ACM Computer Science Curriculum</source>
        !          4194:          <taxon>
        !          4195:             <entry>Algorithms and Data Structures</entry>
        !          4196:          </taxon>
        !          4197:       </taxonpath>
        !          4198:       <description>The type of class that this resource is best suited for</description>
        !          4199:    </classification>
        !          4200:    <classification>
        !          4201:       <purpose>Discipline</purpose>
        !          4202:       <taxonpath>
        !          4203:          <source>ACM Computing Classification System</source>
        !          4204:          <taxon>
        !          4205:             <entry>Data</entry>
        !          4206:          </taxon>
        !          4207:          <taxon>
        !          4208:             <entry>Data Structures</entry>
        !          4209:          </taxon>
        !          4210:       </taxonpath>
        !          4211:       <description>The subject classification that best describes the resource</description>
        !          4212:    </classification>
        !          4213: </oai_ims>
        !          4214: </metadata>
        !          4215: </record>
        !          4216: <record>
        !          4217: <header>
        !          4218: <identifier>oai:CSTC:126</identifier>
        !          4219: <datestamp>2001-09-06</datestamp>
        !          4220: </header>
        !          4221: <metadata>
        !          4222: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          4223:    <general>
        !          4224:       <title>VisualOS Operating System Visualization Program</title>
        !          4225:       <catalogentry>
        !          4226:          <catalogue>CSTC</catalogue>
        !          4227:          <entry>126</entry>
        !          4228:       </catalogentry>
        !          4229:       <language>English</language>
        !          4230:       <description> VisualOS is an educational visual simulator of operating system. Its purpose is to help understand how an operating systems and the algorithms involved work by showing visual representations of the different aspects of an operating system.</description>
        !          4231:       <keywords>Operating System</keywords>
        !          4232:       <keywords>simluator</keywords>
        !          4233:       <keywords>linux</keywords>
        !          4234:       <keywords>unix</keywords>
        !          4235:    </general>
        !          4236:    <lifecycle>
        !          4237:       <status>Final</status>
        !          4238:       <contribute>
        !          4239:          <role>Author</role>
        !          4240:          <entity>
        !          4241: BEGIN:vCard
        !          4242: FN:Manuel Estrada Sainz
        !          4243: N:Estrada Sainz;Manuel
        !          4244: EMAIL;INTERNET:ranty@users.sourceforge.net
        !          4245: END:vCard
        !          4246: </entity>
        !          4247:          <date datetype="datetime">
        !          4248:          2001-09-06
        !          4249:          </date>
        !          4250:       </contribute>
        !          4251:    </lifecycle>
        !          4252:    <metametadata>
        !          4253:       <contribute>
        !          4254:          <role>Contributor</role>
        !          4255:          <entity>
        !          4256: BEGIN:vCard
        !          4257: FN:Mike Belanger
        !          4258: N:Belanger;Mike
        !          4259: EMAIL;INTERNET:mbelange@vt.edu
        !          4260: ORG:;
        !          4261: END:vCard
        !          4262: </entity>
        !          4263:          <date datetype="datetime">
        !          4264:          2001-09-06
        !          4265:          </date>
        !          4266:       </contribute>
        !          4267:       <language>en-US</language>
        !          4268:    </metametadata>
        !          4269:    <technical>
        !          4270:       <format>text/html</format>
        !          4271:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=126</location>
        !          4272:       <requirements>
        !          4273:          <type>Platform</type>
        !          4274:          <name>PC</name>
        !          4275:       </requirements>
        !          4276:       <requirements>
        !          4277:          <type>Operating System</type>
        !          4278:          <name>UNIX</name>
        !          4279:       </requirements>
        !          4280:       <requirements>
        !          4281:          <type>Programming Language</type>
        !          4282:          <name>C++</name>
        !          4283:       </requirements>
        !          4284:    </technical>
        !          4285:    <educational>
        !          4286:       <intendedenduserrole>Learner</intendedenduserrole>
        !          4287:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          4288:       <learningcontext>Higher Education</learningcontext>
        !          4289:       <learningcontext>Secondary Education</learningcontext>
        !          4290:    </educational>
        !          4291:    <rights>
        !          4292:       <copyrightandotherrestrictions>yes</copyrightandotherrestrictions>
        !          4293:       <description>GPL</description>
        !          4294:    </rights>
        !          4295:    <classification>
        !          4296:       <purpose>Educational Objective</purpose>
        !          4297:       <taxonpath>
        !          4298:          <source>ACM Computer Science Curriculum</source>
        !          4299:          <taxon>
        !          4300:             <entry>Operating Systems</entry>
        !          4301:          </taxon>
        !          4302:       </taxonpath>
        !          4303:       <description>The type of class that this resource is best suited for</description>
        !          4304:    </classification>
        !          4305:    <classification>
        !          4306:       <purpose>Discipline</purpose>
        !          4307:       <taxonpath>
        !          4308:          <source>ACM Computing Classification System</source>
        !          4309:          <taxon>
        !          4310:             <entry>Software</entry>
        !          4311:          </taxon>
        !          4312:          <taxon>
        !          4313:             <entry>Operating Systems</entry>
        !          4314:          </taxon>
        !          4315:       </taxonpath>
        !          4316:       <description>The subject classification that best describes the resource</description>
        !          4317:    </classification>
        !          4318: </oai_ims>
        !          4319: </metadata>
        !          4320: </record>
        !          4321: <record>
        !          4322: <header>
        !          4323: <identifier>oai:CSTC:127</identifier>
        !          4324: <datestamp>2001-09-06</datestamp>
        !          4325: </header>
        !          4326: <metadata>
        !          4327: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          4328:    <general>
        !          4329:       <title>Simple Model Automatic Computer</title>
        !          4330:       <catalogentry>
        !          4331:          <catalogue>CSTC</catalogue>
        !          4332:          <entry>127</entry>
        !          4333:       </catalogentry>
        !          4334:       <description> A simple automatic computer simulator. Equipped with a program editor, an assembler, a simulator, a tracer, and a memory viewer.</description>
        !          4335:       <keywords>computer</keywords>
        !          4336:       <keywords>SIMAC</keywords>
        !          4337:       <keywords>simulator</keywords>
        !          4338:    </general>
        !          4339:    <lifecycle>
        !          4340:       <status>Final</status>
        !          4341:       <contribute>
        !          4342:          <role>Author</role>
        !          4343:          <entity>
        !          4344: BEGIN:vCard
        !          4345: FN:Yanto Suryono
        !          4346: N:Suryono;Yanto
        !          4347: EMAIL;INTERNET:yanto@fedu.uec.ac.jp
        !          4348: END:vCard
        !          4349: </entity>
        !          4350:          <date datetype="datetime">
        !          4351:          2001-09-06
        !          4352:          </date>
        !          4353:       </contribute>
        !          4354:    </lifecycle>
        !          4355:    <metametadata>
        !          4356:       <contribute>
        !          4357:          <role>Contributor</role>
        !          4358:          <entity>
        !          4359: BEGIN:vCard
        !          4360: FN:Vikram Narula
        !          4361: N:Narula;Vikram
        !          4362: EMAIL;INTERNET:vnarula@vt.edu
        !          4363: ORG:Virginia Tech;CS
        !          4364: END:vCard
        !          4365: </entity>
        !          4366:          <date datetype="datetime">
        !          4367:          2001-09-06
        !          4368:          </date>
        !          4369:       </contribute>
        !          4370:       <language>en-US</language>
        !          4371:    </metametadata>
        !          4372:    <technical>
        !          4373:       <format>text/html</format>
        !          4374:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=127</location>
        !          4375:    </technical>
        !          4376:    <educational>
        !          4377:       <intendedenduserrole>Learner</intendedenduserrole>
        !          4378:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          4379:       <learningcontext>Higher Education</learningcontext>
        !          4380:       <learningcontext>Secondary Education</learningcontext>
        !          4381:    </educational>
        !          4382:    <classification>
        !          4383:       <purpose>Educational Objective</purpose>
        !          4384:       <taxonpath>
        !          4385:          <source>ACM Computer Science Curriculum</source>
        !          4386:          <taxon>
        !          4387:             <entry>Software Methodology and Engineering</entry>
        !          4388:          </taxon>
        !          4389:       </taxonpath>
        !          4390:       <description>The type of class that this resource is best suited for</description>
        !          4391:    </classification>
        !          4392:    <classification>
        !          4393:       <purpose>Discipline</purpose>
        !          4394:       <taxonpath>
        !          4395:          <source>ACM Computing Classification System</source>
        !          4396:          <taxon>
        !          4397:             <entry>Hardware</entry>
        !          4398:          </taxon>
        !          4399:          <taxon>
        !          4400:             <entry>General</entry>
        !          4401:          </taxon>
        !          4402:       </taxonpath>
        !          4403:       <description>The subject classification that best describes the resource</description>
        !          4404:    </classification>
        !          4405:    <classification>
        !          4406:       <purpose>Discipline</purpose>
        !          4407:       <taxonpath>
        !          4408:          <source>ACM Computing Classification System</source>
        !          4409:          <taxon>
        !          4410:             <entry>Computer Systems Organization</entry>
        !          4411:          </taxon>
        !          4412:          <taxon>
        !          4413:             <entry>General</entry>
        !          4414:          </taxon>
        !          4415:       </taxonpath>
        !          4416:       <description>The subject classification that best describes the resource</description>
        !          4417:    </classification>
        !          4418: </oai_ims>
        !          4419: </metadata>
        !          4420: </record>
        !          4421: <record>
        !          4422: <header>
        !          4423: <identifier>oai:CSTC:129</identifier>
        !          4424: <datestamp>2001-09-06</datestamp>
        !          4425: </header>
        !          4426: <metadata>
        !          4427: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          4428:    <general>
        !          4429:       <title>Unix Sortdemo</title>
        !          4430:       <catalogentry>
        !          4431:          <catalogue>CSTC</catalogue>
        !          4432:          <entry>129</entry>
        !          4433:       </catalogentry>
        !          4434:       <language>English</language>
        !          4435:       <description> Sortdemo is a program to visualize various types of sorting algorithms. It generates a sequence of image files, that can be converted to an animation suitable for demonstrations.</description>
        !          4436:       <keywords>Sorting</keywords>
        !          4437:       <keywords>demo</keywords>
        !          4438:       <keywords>unix</keywords>
        !          4439:    </general>
        !          4440:    <lifecycle>
        !          4441:       <status>Final</status>
        !          4442:       <contribute>
        !          4443:          <role>Author</role>
        !          4444:          <entity>
        !          4445: BEGIN:vCard
        !          4446: FN:Anuradha Ratnaweera
        !          4447: N:Ratnaweera;Anuradha
        !          4448: EMAIL;INTERNET:anuradha@gnu.org
        !          4449: END:vCard
        !          4450: </entity>
        !          4451:          <date datetype="datetime">
        !          4452:          2001-09-06
        !          4453:          </date>
        !          4454:       </contribute>
        !          4455:    </lifecycle>
        !          4456:    <metametadata>
        !          4457:       <contribute>
        !          4458:          <role>Contributor</role>
        !          4459:          <entity>
        !          4460: BEGIN:vCard
        !          4461: FN:Mike Belanger
        !          4462: N:Belanger;Mike
        !          4463: EMAIL;INTERNET:mbelange@vt.edu
        !          4464: ORG:;
        !          4465: END:vCard
        !          4466: </entity>
        !          4467:          <date datetype="datetime">
        !          4468:          2001-09-06
        !          4469:          </date>
        !          4470:       </contribute>
        !          4471:       <language>en-US</language>
        !          4472:    </metametadata>
        !          4473:    <technical>
        !          4474:       <format>text/html</format>
        !          4475:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=129</location>
        !          4476:       <requirements>
        !          4477:          <type>Platform</type>
        !          4478:          <name>PC</name>
        !          4479:       </requirements>
        !          4480:       <requirements>
        !          4481:          <type>Operating System</type>
        !          4482:          <name>UNIX</name>
        !          4483:       </requirements>
        !          4484:       <requirements>
        !          4485:          <type>Programming Language</type>
        !          4486:          <name>C++</name>
        !          4487:       </requirements>
        !          4488:    </technical>
        !          4489:    <educational>
        !          4490:       <intendedenduserrole>Learner</intendedenduserrole>
        !          4491:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          4492:       <learningcontext>Higher Education</learningcontext>
        !          4493:       <learningcontext>Secondary Education</learningcontext>
        !          4494:    </educational>
        !          4495:    <rights>
        !          4496:       <copyrightandotherrestrictions>yes</copyrightandotherrestrictions>
        !          4497:       <description>GNU GPL</description>
        !          4498:    </rights>
        !          4499:    <classification>
        !          4500:       <purpose>Educational Objective</purpose>
        !          4501:       <taxonpath>
        !          4502:          <source>ACM Computer Science Curriculum</source>
        !          4503:          <taxon>
        !          4504:             <entry>Algorithms and Data Structures</entry>
        !          4505:          </taxon>
        !          4506:       </taxonpath>
        !          4507:       <description>The type of class that this resource is best suited for</description>
        !          4508:    </classification>
        !          4509:    <classification>
        !          4510:       <purpose>Discipline</purpose>
        !          4511:       <taxonpath>
        !          4512:          <source>ACM Computing Classification System</source>
        !          4513:          <taxon>
        !          4514:             <entry>Software</entry>
        !          4515:          </taxon>
        !          4516:          <taxon>
        !          4517:             <entry>Programming Techniques</entry>
        !          4518:          </taxon>
        !          4519:       </taxonpath>
        !          4520:       <description>The subject classification that best describes the resource</description>
        !          4521:    </classification>
        !          4522: </oai_ims>
        !          4523: </metadata>
        !          4524: </record>
        !          4525: <record>
        !          4526: <header>
        !          4527: <identifier>oai:CSTC:133</identifier>
        !          4528: <datestamp>2001-09-06</datestamp>
        !          4529: </header>
        !          4530: <metadata>
        !          4531: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          4532:    <general>
        !          4533:       <title>Jeliot, Interactive Algorithm Animator</title>
        !          4534:       <catalogentry>
        !          4535:          <catalogue>CSTC</catalogue>
        !          4536:          <entry>133</entry>
        !          4537:       </catalogentry>
        !          4538:       <description> This is a quite complicated applet/servlet combination to interactively animate almost any Java application or algorithm. The basic idea is to animate user's code interactively. First You write the code, send it to the server and wait a while. Then You can watch Your own code in action. The system is able to animate almost any algorithm written in Java, exact details of the restictions can be found in the user's manual. Major features: user's own code (with or without errors :), interactive, line-by-line</description>
        !          4539:       <keywords>algorithm</keywords>
        !          4540:       <keywords>code animation</keywords>
        !          4541:    </general>
        !          4542:    <lifecycle>
        !          4543:       <status>Final</status>
        !          4544:       <contribute>
        !          4545:          <role>Author</role>
        !          4546:          <entity>
        !          4547: BEGIN:vCard
        !          4548: FN:Tommi Terasvirta
        !          4549: N:Terasvirta;Tommi
        !          4550: EMAIL;INTERNET:Tommi.Terasvirta@cs.helsinki.fi
        !          4551: END:vCard
        !          4552: </entity>
        !          4553:          <date datetype="datetime">
        !          4554:          2001-09-06
        !          4555:          </date>
        !          4556:       </contribute>
        !          4557:    </lifecycle>
        !          4558:    <metametadata>
        !          4559:       <contribute>
        !          4560:          <role>Contributor</role>
        !          4561:          <entity>
        !          4562: BEGIN:vCard
        !          4563: FN:Vikram Narula
        !          4564: N:Narula;Vikram
        !          4565: EMAIL;INTERNET:vnarula@vt.edu
        !          4566: ORG:Virginia Tech;CS
        !          4567: END:vCard
        !          4568: </entity>
        !          4569:          <date datetype="datetime">
        !          4570:          2001-09-06
        !          4571:          </date>
        !          4572:       </contribute>
        !          4573:       <language>en-US</language>
        !          4574:    </metametadata>
        !          4575:    <technical>
        !          4576:       <format>text/html</format>
        !          4577:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=133</location>
        !          4578:    </technical>
        !          4579:    <educational>
        !          4580:       <intendedenduserrole>Learner</intendedenduserrole>
        !          4581:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          4582:       <learningcontext>Higher Education</learningcontext>
        !          4583:       <learningcontext>Secondary Education</learningcontext>
        !          4584:    </educational>
        !          4585:    <classification>
        !          4586:       <purpose>Educational Objective</purpose>
        !          4587:       <taxonpath>
        !          4588:          <source>ACM Computer Science Curriculum</source>
        !          4589:          <taxon>
        !          4590:             <entry>Algorithms and Data Structures</entry>
        !          4591:          </taxon>
        !          4592:       </taxonpath>
        !          4593:       <description>The type of class that this resource is best suited for</description>
        !          4594:    </classification>
        !          4595:    <classification>
        !          4596:       <purpose>Discipline</purpose>
        !          4597:       <taxonpath>
        !          4598:          <source>ACM Computing Classification System</source>
        !          4599:          <taxon>
        !          4600:             <entry>Theory of Computation</entry>
        !          4601:          </taxon>
        !          4602:          <taxon>
        !          4603:             <entry>Analysis of Algorithms and Problem Complexity</entry>
        !          4604:          </taxon>
        !          4605:       </taxonpath>
        !          4606:       <description>The subject classification that best describes the resource</description>
        !          4607:    </classification>
        !          4608: </oai_ims>
        !          4609: </metadata>
        !          4610: </record>
        !          4611: <record>
        !          4612: <header>
        !          4613: <identifier>oai:CSTC:134</identifier>
        !          4614: <datestamp>2001-09-06</datestamp>
        !          4615: </header>
        !          4616: <metadata>
        !          4617: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          4618:    <general>
        !          4619:       <title>Xtango</title>
        !          4620:       <catalogentry>
        !          4621:          <catalogue>CSTC</catalogue>
        !          4622:          <entry>134</entry>
        !          4623:       </catalogentry>
        !          4624:       <language>English</language>
        !          4625:       <description> XTANGO is a general purpose algorithm animation system, developed by John Stasko of Georgia Tech, that supports programmers developing color, real-time, 2 &amp; 1/2 dimensional, smooth animations of their own algorithms and programs. The focus of the system is on ease-of-use. XTANGO utilizes the path-transition animation paradigm which helps move animation design to an abstract, high level. Programmers need not be graphics experts to develop their own animations.
        !          4626: XTANGO is implemented on top of UNIX and the X11 Window System. It can be run on either color or black-and-white monitors.</description>
        !          4627:       <keywords>xtango</keywords>
        !          4628:       <keywords>algorithm animation</keywords>
        !          4629:       <keywords>multimedia</keywords>
        !          4630:       <keywords>multimedia creation</keywords>
        !          4631:    </general>
        !          4632:    <lifecycle>
        !          4633:       <status>Final</status>
        !          4634:       <contribute>
        !          4635:          <role>Author</role>
        !          4636:          <entity>
        !          4637: BEGIN:vCard
        !          4638: FN:John Stasko
        !          4639: N:Stasko;John
        !          4640: EMAIL;INTERNET:unknown
        !          4641: END:vCard
        !          4642: </entity>
        !          4643:          <date datetype="datetime">
        !          4644:          2001-09-06
        !          4645:          </date>
        !          4646:       </contribute>
        !          4647:    </lifecycle>
        !          4648:    <metametadata>
        !          4649:       <contribute>
        !          4650:          <role>Contributor</role>
        !          4651:          <entity>
        !          4652: BEGIN:vCard
        !          4653: FN:Steve Hayes
        !          4654: N:Hayes;Steve
        !          4655: EMAIL;INTERNET:shayes@vt.edu
        !          4656: ORG:Virginia Tech;Computer Science
        !          4657: END:vCard
        !          4658: </entity>
        !          4659:          <date datetype="datetime">
        !          4660:          2001-09-06
        !          4661:          </date>
        !          4662:       </contribute>
        !          4663:       <language>en-US</language>
        !          4664:    </metametadata>
        !          4665:    <technical>
        !          4666:       <format>text/html</format>
        !          4667:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=134</location>
        !          4668:       <requirements>
        !          4669:          <type>Platform</type>
        !          4670:          <name>HP, PC, SGI, Sun Sparc</name>
        !          4671:       </requirements>
        !          4672:       <requirements>
        !          4673:          <type>Operating System</type>
        !          4674:          <name>UNIX</name>
        !          4675:       </requirements>
        !          4676:       <requirements>
        !          4677:          <type>Programming Language</type>
        !          4678:          <name>C</name>
        !          4679:       </requirements>
        !          4680:    </technical>
        !          4681:    <educational>
        !          4682:       <intendedenduserrole>Learner</intendedenduserrole>
        !          4683:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          4684:       <learningcontext>Higher Education</learningcontext>
        !          4685:       <learningcontext>Secondary Education</learningcontext>
        !          4686:    </educational>
        !          4687:    <classification>
        !          4688:       <purpose>Educational Objective</purpose>
        !          4689:       <taxonpath>
        !          4690:          <source>ACM Computer Science Curriculum</source>
        !          4691:          <taxon>
        !          4692:             <entry>Algorithms and Data Structures</entry>
        !          4693:          </taxon>
        !          4694:       </taxonpath>
        !          4695:       <description>The type of class that this resource is best suited for</description>
        !          4696:    </classification>
        !          4697:    <classification>
        !          4698:       <purpose>Discipline</purpose>
        !          4699:       <taxonpath>
        !          4700:          <source>ACM Computing Classification System</source>
        !          4701:          <taxon>
        !          4702:             <entry>Data</entry>
        !          4703:          </taxon>
        !          4704:          <taxon>
        !          4705:             <entry>Miscellaneous</entry>
        !          4706:          </taxon>
        !          4707:       </taxonpath>
        !          4708:       <description>The subject classification that best describes the resource</description>
        !          4709:    </classification>
        !          4710: </oai_ims>
        !          4711: </metadata>
        !          4712: </record>
        !          4713: <record>
        !          4714: <header>
        !          4715: <identifier>oai:CSTC:135</identifier>
        !          4716: <datestamp>2001-09-06</datestamp>
        !          4717: </header>
        !          4718: <metadata>
        !          4719: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          4720:    <general>
        !          4721:       <title>World Lecture Hall</title>
        !          4722:       <catalogentry>
        !          4723:          <catalogue>CSTC</catalogue>
        !          4724:          <entry>135</entry>
        !          4725:       </catalogentry>
        !          4726:       <language>English</language>
        !          4727:       <description> The WLH is comprised of links to actual course webpages of universities. The topics of the lectures cover all facets of Computer Science.</description>
        !          4728:       <keywords>lecture</keywords>
        !          4729:       <keywords>webpages</keywords>
        !          4730:       <keywords>course plan</keywords>
        !          4731:    </general>
        !          4732:    <lifecycle>
        !          4733:       <status>Final</status>
        !          4734:       <contribute>
        !          4735:          <role>Author</role>
        !          4736:          <entity>
        !          4737: BEGIN:vCard
        !          4738: FN:World Lecture Hall
        !          4739: N:Hall;World Lecture
        !          4740: EMAIL;INTERNET:see@web.page
        !          4741: END:vCard
        !          4742: </entity>
        !          4743:          <date datetype="datetime">
        !          4744:          2001-09-06
        !          4745:          </date>
        !          4746:       </contribute>
        !          4747:    </lifecycle>
        !          4748:    <metametadata>
        !          4749:       <contribute>
        !          4750:          <role>Contributor</role>
        !          4751:          <entity>
        !          4752: BEGIN:vCard
        !          4753: FN:Mike Belanger
        !          4754: N:Belanger;Mike
        !          4755: EMAIL;INTERNET:mbelange@vt.edu
        !          4756: ORG:;
        !          4757: END:vCard
        !          4758: </entity>
        !          4759:          <date datetype="datetime">
        !          4760:          2001-09-06
        !          4761:          </date>
        !          4762:       </contribute>
        !          4763:       <language>en-US</language>
        !          4764:    </metametadata>
        !          4765:    <technical>
        !          4766:       <format>text/html</format>
        !          4767:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=135</location>
        !          4768:       <requirements>
        !          4769:          <type>Platform</type>
        !          4770:          <name>HTML Browser</name>
        !          4771:       </requirements>
        !          4772:       <requirements>
        !          4773:          <type>Operating System</type>
        !          4774:          <name>All</name>
        !          4775:       </requirements>
        !          4776:       <requirements>
        !          4777:          <type>Programming Language</type>
        !          4778:          <name>HTML</name>
        !          4779:       </requirements>
        !          4780:    </technical>
        !          4781:    <educational>
        !          4782:       <intendedenduserrole>Learner</intendedenduserrole>
        !          4783:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          4784:       <learningcontext>Higher Education</learningcontext>
        !          4785:       <learningcontext>Secondary Education</learningcontext>
        !          4786:    </educational>
        !          4787:    <classification>
        !          4788:       <purpose>Educational Objective</purpose>
        !          4789:       <taxonpath>
        !          4790:          <source>ACM Computer Science Curriculum</source>
        !          4791:          <taxon>
        !          4792:             <entry>Algorithms and Data Structures</entry>
        !          4793:          </taxon>
        !          4794:       </taxonpath>
        !          4795:       <description>The type of class that this resource is best suited for</description>
        !          4796:    </classification>
        !          4797:    <classification>
        !          4798:       <purpose>Educational Objective</purpose>
        !          4799:       <taxonpath>
        !          4800:          <source>ACM Computer Science Curriculum</source>
        !          4801:          <taxon>
        !          4802:             <entry>Architecture Methods</entry>
        !          4803:          </taxon>
        !          4804:       </taxonpath>
        !          4805:       <description>The type of class that this resource is best suited for</description>
        !          4806:    </classification>
        !          4807:    <classification>
        !          4808:       <purpose>Educational Objective</purpose>
        !          4809:       <taxonpath>
        !          4810:          <source>ACM Computer Science Curriculum</source>
        !          4811:          <taxon>
        !          4812:             <entry>Artificial Intelligence and Robotics</entry>
        !          4813:          </taxon>
        !          4814:       </taxonpath>
        !          4815:       <description>The type of class that this resource is best suited for</description>
        !          4816:    </classification>
        !          4817:    <classification>
        !          4818:       <purpose>Educational Objective</purpose>
        !          4819:       <taxonpath>
        !          4820:          <source>ACM Computer Science Curriculum</source>
        !          4821:          <taxon>
        !          4822:             <entry>Database and Information Retrieval</entry>
        !          4823:          </taxon>
        !          4824:       </taxonpath>
        !          4825:       <description>The type of class that this resource is best suited for</description>
        !          4826:    </classification>
        !          4827:    <classification>
        !          4828:       <purpose>Educational Objective</purpose>
        !          4829:       <taxonpath>
        !          4830:          <source>ACM Computer Science Curriculum</source>
        !          4831:          <taxon>
        !          4832:             <entry>Human-Computer Communication</entry>
        !          4833:          </taxon>
        !          4834:       </taxonpath>
        !          4835:       <description>The type of class that this resource is best suited for</description>
        !          4836:    </classification>
        !          4837:    <classification>
        !          4838:       <purpose>Educational Objective</purpose>
        !          4839:       <taxonpath>
        !          4840:          <source>ACM Computer Science Curriculum</source>
        !          4841:          <taxon>
        !          4842:             <entry>Numerical and Symbolic Computation</entry>
        !          4843:          </taxon>
        !          4844:       </taxonpath>
        !          4845:       <description>The type of class that this resource is best suited for</description>
        !          4846:    </classification>
        !          4847:    <classification>
        !          4848:       <purpose>Educational Objective</purpose>
        !          4849:       <taxonpath>
        !          4850:          <source>ACM Computer Science Curriculum</source>
        !          4851:          <taxon>
        !          4852:             <entry>Operating Systems</entry>
        !          4853:          </taxon>
        !          4854:       </taxonpath>
        !          4855:       <description>The type of class that this resource is best suited for</description>
        !          4856:    </classification>
        !          4857:    <classification>
        !          4858:       <purpose>Educational Objective</purpose>
        !          4859:       <taxonpath>
        !          4860:          <source>ACM Computer Science Curriculum</source>
        !          4861:          <taxon>
        !          4862:             <entry>Programming Languages</entry>
        !          4863:          </taxon>
        !          4864:       </taxonpath>
        !          4865:       <description>The type of class that this resource is best suited for</description>
        !          4866:    </classification>
        !          4867:    <classification>
        !          4868:       <purpose>Educational Objective</purpose>
        !          4869:       <taxonpath>
        !          4870:          <source>ACM Computer Science Curriculum</source>
        !          4871:          <taxon>
        !          4872:             <entry>Software Methodology and Engineering</entry>
        !          4873:          </taxon>
        !          4874:       </taxonpath>
        !          4875:       <description>The type of class that this resource is best suited for</description>
        !          4876:    </classification>
        !          4877:    <classification>
        !          4878:       <purpose>Educational Objective</purpose>
        !          4879:       <taxonpath>
        !          4880:          <source>ACM Computer Science Curriculum</source>
        !          4881:          <taxon>
        !          4882:             <entry>Social, Ethical and Professional Issue</entry>
        !          4883:          </taxon>
        !          4884:       </taxonpath>
        !          4885:       <description>The type of class that this resource is best suited for</description>
        !          4886:    </classification>
        !          4887:    <classification>
        !          4888:       <purpose>Discipline</purpose>
        !          4889:       <taxonpath>
        !          4890:          <source>ACM Computing Classification System</source>
        !          4891:          <taxon>
        !          4892:             <entry>General Literature</entry>
        !          4893:          </taxon>
        !          4894:          <taxon>
        !          4895:             <entry>General</entry>
        !          4896:          </taxon>
        !          4897:       </taxonpath>
        !          4898:       <description>The subject classification that best describes the resource</description>
        !          4899:    </classification>
        !          4900: </oai_ims>
        !          4901: </metadata>
        !          4902: </record>
        !          4903: <record>
        !          4904: <header>
        !          4905: <identifier>oai:CSTC:136</identifier>
        !          4906: <datestamp>2001-09-06</datestamp>
        !          4907: </header>
        !          4908: <metadata>
        !          4909: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          4910:    <general>
        !          4911:       <title>Towers of Hanoi applet</title>
        !          4912:       <catalogentry>
        !          4913:          <catalogue>CSTC</catalogue>
        !          4914:          <entry>136</entry>
        !          4915:       </catalogentry>
        !          4916:       <description> Great simulation of a classic problem. The animation solves in the least amount of moves. Stats are reported on how good your approach is.</description>
        !          4917:       <keywords>Towers of Hanoi</keywords>
        !          4918:       <keywords>simulation</keywords>
        !          4919:    </general>
        !          4920:    <lifecycle>
        !          4921:       <status>Final</status>
        !          4922:       <contribute>
        !          4923:          <role>Author</role>
        !          4924:          <entity>
        !          4925: BEGIN:vCard
        !          4926: FN:Jan Struyf
        !          4927: N:Struyf;Jan
        !          4928: EMAIL;INTERNET:Jan.struyf@student.kuleuven.ac.be
        !          4929: END:vCard
        !          4930: </entity>
        !          4931:          <date datetype="datetime">
        !          4932:          2001-09-06
        !          4933:          </date>
        !          4934:       </contribute>
        !          4935:    </lifecycle>
        !          4936:    <metametadata>
        !          4937:       <contribute>
        !          4938:          <role>Contributor</role>
        !          4939:          <entity>
        !          4940: BEGIN:vCard
        !          4941: FN:Mike Belanger
        !          4942: N:Belanger;Mike
        !          4943: EMAIL;INTERNET:mbelange@vt.edu
        !          4944: ORG:;
        !          4945: END:vCard
        !          4946: </entity>
        !          4947:          <date datetype="datetime">
        !          4948:          2001-09-06
        !          4949:          </date>
        !          4950:       </contribute>
        !          4951:       <language>en-US</language>
        !          4952:    </metametadata>
        !          4953:    <technical>
        !          4954:       <format>text/html</format>
        !          4955:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=136</location>
        !          4956:       <requirements>
        !          4957:          <type>Platform</type>
        !          4958:          <name>HTML Browser</name>
        !          4959:       </requirements>
        !          4960:       <requirements>
        !          4961:          <type>Operating System</type>
        !          4962:          <name>All</name>
        !          4963:       </requirements>
        !          4964:       <requirements>
        !          4965:          <type>Programming Language</type>
        !          4966:          <name>Java</name>
        !          4967:       </requirements>
        !          4968:    </technical>
        !          4969:    <educational>
        !          4970:       <intendedenduserrole>Learner</intendedenduserrole>
        !          4971:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          4972:       <learningcontext>Higher Education</learningcontext>
        !          4973:       <learningcontext>Secondary Education</learningcontext>
        !          4974:    </educational>
        !          4975:    <classification>
        !          4976:       <purpose>Educational Objective</purpose>
        !          4977:       <taxonpath>
        !          4978:          <source>ACM Computer Science Curriculum</source>
        !          4979:          <taxon>
        !          4980:             <entry>Algorithms and Data Structures</entry>
        !          4981:          </taxon>
        !          4982:       </taxonpath>
        !          4983:       <description>The type of class that this resource is best suited for</description>
        !          4984:    </classification>
        !          4985:    <classification>
        !          4986:       <purpose>Discipline</purpose>
        !          4987:       <taxonpath>
        !          4988:          <source>ACM Computing Classification System</source>
        !          4989:          <taxon>
        !          4990:             <entry>Computing Methodologies</entry>
        !          4991:          </taxon>
        !          4992:          <taxon>
        !          4993:             <entry>Simulation and Modeling</entry>
        !          4994:          </taxon>
        !          4995:       </taxonpath>
        !          4996:       <description>The subject classification that best describes the resource</description>
        !          4997:    </classification>
        !          4998: </oai_ims>
        !          4999: </metadata>
        !          5000: </record>
        !          5001: <record>
        !          5002: <header>
        !          5003: <identifier>oai:CSTC:139</identifier>
        !          5004: <datestamp>2001-09-06</datestamp>
        !          5005: </header>
        !          5006: <metadata>
        !          5007: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          5008:    <general>
        !          5009:       <title>A New and More Efficient Implementation of an Undirected Graph Component</title>
        !          5010:       <catalogentry>
        !          5011:          <catalogue>CSTC</catalogue>
        !          5012:          <entry>139</entry>
        !          5013:       </catalogentry>
        !          5014:       <language>English</language>
        !          5015:       <description> This research project entails designing, specifying, coding, testing, debugging, and documenting different implementations of an undirected graph component for the RESOLVE/C++ Component Catalog. Each version uses the same abstract model to represent the state of an undirected graph and the same kernel operations to manipulate the state of that undirected graph. The implementation strategy changes for each version. The first five versions utilize the "classic" strategies (adjacency list, adjacency matrix, and edge list) in a variety of ways. The final version employs a novel data structure
        !          5016: that allows each operation to execute in constant time, which dominates the other strategies.</description>
        !          5017:       <keywords>2001 ACM International Student Research Contest</keywords>
        !          5018:       <keywords>3rd place Undergraduate</keywords>
        !          5019:       <keywords>graphs</keywords>
        !          5020:       <keywords>components</keywords>
        !          5021:    </general>
        !          5022:    <lifecycle>
        !          5023:       <status>Final</status>
        !          5024:       <contribute>
        !          5025:          <role>Author</role>
        !          5026:          <entity>
        !          5027: BEGIN:vCard
        !          5028: FN:Shawn Craft
        !          5029: N:Craft;Shawn
        !          5030: EMAIL;INTERNET:craft.51@osu.edu
        !          5031: END:vCard
        !          5032: </entity>
        !          5033:          <date datetype="datetime">
        !          5034:          2001-09-06
        !          5035:          </date>
        !          5036:       </contribute>
        !          5037:    </lifecycle>
        !          5038:    <metametadata>
        !          5039:       <contribute>
        !          5040:          <role>Contributor</role>
        !          5041:          <entity>
        !          5042: BEGIN:vCard
        !          5043: FN:Shawn Craft
        !          5044: N:Craft;Shawn
        !          5045: EMAIL;INTERNET:craft.51@osu.edu
        !          5046: ORG:The Ohio State University;Computer and Information Science
        !          5047: END:vCard
        !          5048: </entity>
        !          5049:          <date datetype="datetime">
        !          5050:          2001-09-06
        !          5051:          </date>
        !          5052:       </contribute>
        !          5053:       <language>en-US</language>
        !          5054:    </metametadata>
        !          5055:    <technical>
        !          5056:       <format>text/html</format>
        !          5057:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=139</location>
        !          5058:       <requirements>
        !          5059:          <type>Platform</type>
        !          5060:          <name>HP, HTML Browser, PC</name>
        !          5061:       </requirements>
        !          5062:       <requirements>
        !          5063:          <type>Operating System</type>
        !          5064:          <name>Windows 95/98, Windows NT</name>
        !          5065:       </requirements>
        !          5066:    </technical>
        !          5067:    <educational>
        !          5068:       <intendedenduserrole>Learner</intendedenduserrole>
        !          5069:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          5070:       <learningcontext>Higher Education</learningcontext>
        !          5071:       <learningcontext>Secondary Education</learningcontext>
        !          5072:    </educational>
        !          5073:    <classification>
        !          5074:       <purpose>Educational Objective</purpose>
        !          5075:       <taxonpath>
        !          5076:          <source>ACM Computer Science Curriculum</source>
        !          5077:          <taxon>
        !          5078:             <entry>Algorithms and Data Structures</entry>
        !          5079:          </taxon>
        !          5080:       </taxonpath>
        !          5081:       <description>The type of class that this resource is best suited for</description>
        !          5082:    </classification>
        !          5083:    <classification>
        !          5084:       <purpose>Educational Objective</purpose>
        !          5085:       <taxonpath>
        !          5086:          <source>ACM Computer Science Curriculum</source>
        !          5087:          <taxon>
        !          5088:             <entry>Software Methodology and Engineering</entry>
        !          5089:          </taxon>
        !          5090:       </taxonpath>
        !          5091:       <description>The type of class that this resource is best suited for</description>
        !          5092:    </classification>
        !          5093:    <classification>
        !          5094:       <purpose>Discipline</purpose>
        !          5095:       <taxonpath>
        !          5096:          <source>ACM Computing Classification System</source>
        !          5097:          <taxon>
        !          5098:             <entry>Software</entry>
        !          5099:          </taxon>
        !          5100:          <taxon>
        !          5101:             <entry>Programming Techniques</entry>
        !          5102:          </taxon>
        !          5103:       </taxonpath>
        !          5104:       <description>The subject classification that best describes the resource</description>
        !          5105:    </classification>
        !          5106:    <classification>
        !          5107:       <purpose>Discipline</purpose>
        !          5108:       <taxonpath>
        !          5109:          <source>ACM Computing Classification System</source>
        !          5110:          <taxon>
        !          5111:             <entry>Software</entry>
        !          5112:          </taxon>
        !          5113:          <taxon>
        !          5114:             <entry>Software Engineering</entry>
        !          5115:          </taxon>
        !          5116:       </taxonpath>
        !          5117:       <description>The subject classification that best describes the resource</description>
        !          5118:    </classification>
        !          5119:    <classification>
        !          5120:       <purpose>Discipline</purpose>
        !          5121:       <taxonpath>
        !          5122:          <source>ACM Computing Classification System</source>
        !          5123:          <taxon>
        !          5124:             <entry>Data</entry>
        !          5125:          </taxon>
        !          5126:          <taxon>
        !          5127:             <entry>Data Structures</entry>
        !          5128:          </taxon>
        !          5129:       </taxonpath>
        !          5130:       <description>The subject classification that best describes the resource</description>
        !          5131:    </classification>
        !          5132:    <classification>
        !          5133:       <purpose>Discipline</purpose>
        !          5134:       <taxonpath>
        !          5135:          <source>ACM Computing Classification System</source>
        !          5136:          <taxon>
        !          5137:             <entry>Data</entry>
        !          5138:          </taxon>
        !          5139:          <taxon>
        !          5140:             <entry>Data Storage Representations</entry>
        !          5141:          </taxon>
        !          5142:       </taxonpath>
        !          5143:       <description>The subject classification that best describes the resource</description>
        !          5144:    </classification>
        !          5145:    <classification>
        !          5146:       <purpose>Discipline</purpose>
        !          5147:       <taxonpath>
        !          5148:          <source>ACM Computing Classification System</source>
        !          5149:          <taxon>
        !          5150:             <entry>Theory of Computation</entry>
        !          5151:          </taxon>
        !          5152:          <taxon>
        !          5153:             <entry>Analysis of Algorithms and Problem Complexity</entry>
        !          5154:          </taxon>
        !          5155:       </taxonpath>
        !          5156:       <description>The subject classification that best describes the resource</description>
        !          5157:    </classification>
        !          5158: </oai_ims>
        !          5159: </metadata>
        !          5160: </record>
        !          5161: <record>
        !          5162: <header>
        !          5163: <identifier>oai:CSTC:140</identifier>
        !          5164: <datestamp>2001-09-06</datestamp>
        !          5165: </header>
        !          5166: <metadata>
        !          5167: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          5168:    <general>
        !          5169:       <title>Building An Interactive, 3D Virtual World</title>
        !          5170:       <catalogentry>
        !          5171:          <catalogue>CSTC</catalogue>
        !          5172:          <entry>140</entry>
        !          5173:       </catalogentry>
        !          5174:       <language>English</language>
        !          5175:       <description> Consumer-level computer hardware is quickly growing in its capability to handle high quality three-dimensional graphics in real time. Three-dimensional graphics programming is also quickly becoming the standard for data visualization and entertainment media. This project serves to explore different techniques and approaches for programming in three dimensions, and manifests them in a virtual world that can be rendered and navigated in real time.</description>
        !          5176:       <keywords>2001 CCSCNE Student Research Poster Contest</keywords>
        !          5177:       <keywords>2st place Undergraduate</keywords>
        !          5178:       <keywords>graphics</keywords>
        !          5179:       <keywords>computer graphics</keywords>
        !          5180:       <keywords>simulation</keywords>
        !          5181:       <keywords>computer game</keywords>
        !          5182:       <keywords>3d</keywords>
        !          5183:       <keywords>three-dimensional</keywords>
        !          5184:       <keywords>virtual</keywords>
        !          5185:       <keywords>world</keywords>
        !          5186:    </general>
        !          5187:    <lifecycle>
        !          5188:       <status>Final</status>
        !          5189:       <contribute>
        !          5190:          <role>Author</role>
        !          5191:          <entity>
        !          5192: BEGIN:vCard
        !          5193: FN:Raymond Mazza
        !          5194: N:Mazza;Raymond
        !          5195: EMAIL;INTERNET:rhmazza@colby.edu
        !          5196: END:vCard
        !          5197: </entity>
        !          5198:          <date datetype="datetime">
        !          5199:          2001-09-06
        !          5200:          </date>
        !          5201:       </contribute>
        !          5202:    </lifecycle>
        !          5203:    <metametadata>
        !          5204:       <contribute>
        !          5205:          <role>Contributor</role>
        !          5206:          <entity>
        !          5207: BEGIN:vCard
        !          5208: FN:Raymond Mazza
        !          5209: N:Mazza;Raymond
        !          5210: EMAIL;INTERNET:rhmazza@colby.edu
        !          5211: ORG:Colby College;Computer Science, Physics
        !          5212: END:vCard
        !          5213: </entity>
        !          5214:          <date datetype="datetime">
        !          5215:          2001-09-06
        !          5216:          </date>
        !          5217:       </contribute>
        !          5218:       <language>en-US</language>
        !          5219:    </metametadata>
        !          5220:    <technical>
        !          5221:       <format>text/html</format>
        !          5222:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=140</location>
        !          5223:       <requirements>
        !          5224:          <type>Platform</type>
        !          5225:          <name>PC</name>
        !          5226:       </requirements>
        !          5227:       <requirements>
        !          5228:          <type>Operating System</type>
        !          5229:          <name>Windows 95/98</name>
        !          5230:       </requirements>
        !          5231:       <requirements>
        !          5232:          <type>Programming Language</type>
        !          5233:          <name>C++</name>
        !          5234:       </requirements>
        !          5235:    </technical>
        !          5236:    <educational>
        !          5237:       <intendedenduserrole>Learner</intendedenduserrole>
        !          5238:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          5239:       <learningcontext>Higher Education</learningcontext>
        !          5240:       <learningcontext>Secondary Education</learningcontext>
        !          5241:    </educational>
        !          5242:    <classification>
        !          5243:       <purpose>Educational Objective</purpose>
        !          5244:       <taxonpath>
        !          5245:          <source>ACM Computer Science Curriculum</source>
        !          5246:          <taxon>
        !          5247:             <entry>Human-Computer Communication</entry>
        !          5248:          </taxon>
        !          5249:       </taxonpath>
        !          5250:       <description>The type of class that this resource is best suited for</description>
        !          5251:    </classification>
        !          5252:    <classification>
        !          5253:       <purpose>Educational Objective</purpose>
        !          5254:       <taxonpath>
        !          5255:          <source>ACM Computer Science Curriculum</source>
        !          5256:          <taxon>
        !          5257:             <entry>Software Methodology and Engineering</entry>
        !          5258:          </taxon>
        !          5259:       </taxonpath>
        !          5260:       <description>The type of class that this resource is best suited for</description>
        !          5261:    </classification>
        !          5262:    <classification>
        !          5263:       <purpose>Discipline</purpose>
        !          5264:       <taxonpath>
        !          5265:          <source>ACM Computing Classification System</source>
        !          5266:          <taxon>
        !          5267:             <entry>Computing Methodologies</entry>
        !          5268:          </taxon>
        !          5269:          <taxon>
        !          5270:             <entry>Computer Graphics</entry>
        !          5271:          </taxon>
        !          5272:       </taxonpath>
        !          5273:       <description>The subject classification that best describes the resource</description>
        !          5274:    </classification>
        !          5275:    <classification>
        !          5276:       <purpose>Discipline</purpose>
        !          5277:       <taxonpath>
        !          5278:          <source>ACM Computing Classification System</source>
        !          5279:          <taxon>
        !          5280:             <entry>Computing Methodologies</entry>
        !          5281:          </taxon>
        !          5282:          <taxon>
        !          5283:             <entry>Simulation and Modeling</entry>
        !          5284:          </taxon>
        !          5285:       </taxonpath>
        !          5286:       <description>The subject classification that best describes the resource</description>
        !          5287:    </classification>
        !          5288: </oai_ims>
        !          5289: </metadata>
        !          5290: </record>
        !          5291: <record>
        !          5292: <header>
        !          5293: <identifier>oai:CSTC:141</identifier>
        !          5294: <datestamp>2001-09-06</datestamp>
        !          5295: </header>
        !          5296: <metadata>
        !          5297: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          5298:    <general>
        !          5299:       <title>Ast and secure distributed read-only file system</title>
        !          5300:       <catalogentry>
        !          5301:          <catalogue>CSTC</catalogue>
        !          5302:          <entry>141</entry>
        !          5303:       </catalogentry>
        !          5304:       <language>English</language>
        !          5305:       <description> The self-certifying read-only file system enables secure distribution
        !          5306: of public, read-only content. It is similar to anonymous FTP or the
        !          5307: Web, except that it serves integrity-protected content. That is, an
        !          5308: adversary cannot trick a user into accepting unauthentic content. The
        !          5309: read-only file system pushes the cost of cryptography entirely onto
        !          5310: clients, allowing servers to scale to many clients. To publish
        !          5311: content, an administrator creates off-line a signed database of a
        !          5312: local file system. Untrusted replicas then serve the content to
        !          5313: clients. We demonstrate how to use the read-only file system to
        !          5314: implement certificate authorities and securely distribute software.</description>
        !          5315:       <keywords>security</keywords>
        !          5316:       <keywords>file systems</keywords>
        !          5317:       <keywords>cryptography</keywords>
        !          5318:       <keywords></keywords>
        !          5319:       <keywords>hash trees</keywords>
        !          5320:    </general>
        !          5321:    <lifecycle>
        !          5322:       <status>Final</status>
        !          5323:       <contribute>
        !          5324:          <role>Author</role>
        !          5325:          <entity>
        !          5326: BEGIN:vCard
        !          5327: FN:Kevin Fu
        !          5328: N:Fu;Kevin
        !          5329: EMAIL;INTERNET:fubob@mit.edu
        !          5330: END:vCard
        !          5331: </entity>
        !          5332:          <date datetype="datetime">
        !          5333:          2001-09-06
        !          5334:          </date>
        !          5335:       </contribute>
        !          5336:       <contribute>
        !          5337:          <role>Author</role>
        !          5338:          <entity>
        !          5339: BEGIN:vCard
        !          5340: FN:Frans Kaashoek
        !          5341: N:Kaashoek;Frans
        !          5342: EMAIL;INTERNET:kaashoek@lcs.mit.edu
        !          5343: END:vCard
        !          5344: </entity>
        !          5345:          <date datetype="datetime">
        !          5346:          2001-09-06
        !          5347:          </date>
        !          5348:       </contribute>
        !          5349:       <contribute>
        !          5350:          <role>Author</role>
        !          5351:          <entity>
        !          5352: BEGIN:vCard
        !          5353: FN:David Mazieres
        !          5354: N:Mazieres;David
        !          5355: EMAIL;INTERNET:dm@cs.nyu.edu
        !          5356: END:vCard
        !          5357: </entity>
        !          5358:          <date datetype="datetime">
        !          5359:          2001-09-06
        !          5360:          </date>
        !          5361:       </contribute>
        !          5362:    </lifecycle>
        !          5363:    <metametadata>
        !          5364:       <contribute>
        !          5365:          <role>Contributor</role>
        !          5366:          <entity>
        !          5367: BEGIN:vCard
        !          5368: FN:Kevin Fu
        !          5369: N:Fu;Kevin
        !          5370: EMAIL;INTERNET:fubob@mit.edu
        !          5371: ORG:MIT;
        !          5372: END:vCard
        !          5373: </entity>
        !          5374:          <date datetype="datetime">
        !          5375:          2001-09-06
        !          5376:          </date>
        !          5377:       </contribute>
        !          5378:       <language>en-US</language>
        !          5379:    </metametadata>
        !          5380:    <technical>
        !          5381:       <format>text/html</format>
        !          5382:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=141</location>
        !          5383:       <requirements>
        !          5384:          <type>Platform</type>
        !          5385:          <name>Alpha, PC, Sun Sparc</name>
        !          5386:       </requirements>
        !          5387:       <requirements>
        !          5388:          <type>Operating System</type>
        !          5389:          <name>UNIX</name>
        !          5390:       </requirements>
        !          5391:       <requirements>
        !          5392:          <type>Programming Language</type>
        !          5393:          <name>C++</name>
        !          5394:       </requirements>
        !          5395:    </technical>
        !          5396:    <educational>
        !          5397:       <intendedenduserrole>Learner</intendedenduserrole>
        !          5398:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          5399:       <learningcontext>Higher Education</learningcontext>
        !          5400:       <learningcontext>Secondary Education</learningcontext>
        !          5401:    </educational>
        !          5402:    <rights>
        !          5403:       <copyrightandotherrestrictions>yes</copyrightandotherrestrictions>
        !          5404:       <description>system is open-source. poster includes images which may or may not be subject to fair use.</description>
        !          5405:    </rights>
        !          5406:    <classification>
        !          5407:       <purpose>Educational Objective</purpose>
        !          5408:       <taxonpath>
        !          5409:          <source>ACM Computer Science Curriculum</source>
        !          5410:          <taxon>
        !          5411:             <entry>Operating Systems</entry>
        !          5412:          </taxon>
        !          5413:       </taxonpath>
        !          5414:       <description>The type of class that this resource is best suited for</description>
        !          5415:    </classification>
        !          5416:    <classification>
        !          5417:       <purpose>Discipline</purpose>
        !          5418:       <taxonpath>
        !          5419:          <source>ACM Computing Classification System</source>
        !          5420:          <taxon>
        !          5421:             <entry>Data</entry>
        !          5422:          </taxon>
        !          5423:          <taxon>
        !          5424:             <entry>Data Encryption</entry>
        !          5425:          </taxon>
        !          5426:       </taxonpath>
        !          5427:       <description>The subject classification that best describes the resource</description>
        !          5428:    </classification>
        !          5429:    <classification>
        !          5430:       <purpose>Discipline</purpose>
        !          5431:       <taxonpath>
        !          5432:          <source>ACM Computing Classification System</source>
        !          5433:          <taxon>
        !          5434:             <entry>Data</entry>
        !          5435:          </taxon>
        !          5436:          <taxon>
        !          5437:             <entry>Files</entry>
        !          5438:          </taxon>
        !          5439:       </taxonpath>
        !          5440:       <description>The subject classification that best describes the resource</description>
        !          5441:    </classification>
        !          5442: </oai_ims>
        !          5443: </metadata>
        !          5444: </record>
        !          5445: <record>
        !          5446: <header>
        !          5447: <identifier>oai:CSTC:142</identifier>
        !          5448: <datestamp>2001-09-06</datestamp>
        !          5449: </header>
        !          5450: <metadata>
        !          5451: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          5452:    <general>
        !          5453:       <title>The Old World Meets the New: Utilizing Java Technology to Re-vitalize and Enhance NASA Scientific Legacy Code</title>
        !          5454:       <catalogentry>
        !          5455:          <catalogue>CSTC</catalogue>
        !          5456:          <entry>142</entry>
        !          5457:       </catalogentry>
        !          5458:       <language>English</language>
        !          5459:       <description> A general purpose client/server architecture has been developed to effect the modernization of legacy code. This technique utilizes platform independent graphical user interfaces and interactive visualizations. The client/server configuration exploits a content-taggable data stream which allows seamless integration with the legacy application. This allows the client to orchestrate the collection of data in a more graphically interactive manner than was present in the original legacy interface. Application of this architecture to a NASA Global Scientific Model was demonstrated. The enhanced model incorporating this architecture will support data interpretation for NASAs TIMED satellite mission, including distributed investigations managed via a remote server.</description>
        !          5460:       <keywords>2001 ACM International Student Research Contest</keywords>
        !          5461:       <keywords>first Place Undergraduate</keywords>
        !          5462:       <keywords>1st Place Undergraduate</keywords>
        !          5463:       <keywords>Java</keywords>
        !          5464:       <keywords>Distributed</keywords>
        !          5465:       <keywords>Application Wrapper</keywords>
        !          5466:       <keywords>Visualization</keywords>
        !          5467:       <keywords>Legacy</keywords>
        !          5468:       <keywords>Modernization</keywords>
        !          5469:    </general>
        !          5470:    <lifecycle>
        !          5471:       <status>Final</status>
        !          5472:       <contribute>
        !          5473:          <role>Author</role>
        !          5474:          <entity>
        !          5475: BEGIN:vCard
        !          5476: FN:Michael Elder
        !          5477: N:Elder;Michael
        !          5478: EMAIL;INTERNET:michael.elder@acm.org
        !          5479: END:vCard
        !          5480: </entity>
        !          5481:          <date datetype="datetime">
        !          5482:          2001-09-06
        !          5483:          </date>
        !          5484:       </contribute>
        !          5485:    </lifecycle>
        !          5486:    <metametadata>
        !          5487:       <contribute>
        !          5488:          <role>Contributor</role>
        !          5489:          <entity>
        !          5490: BEGIN:vCard
        !          5491: FN:Michael Elder
        !          5492: N:Elder;Michael
        !          5493: EMAIL;INTERNET:michael.elder@furman.edu
        !          5494: ORG:Furman University;Computer Science
        !          5495: END:vCard
        !          5496: </entity>
        !          5497:          <date datetype="datetime">
        !          5498:          2001-09-06
        !          5499:          </date>
        !          5500:       </contribute>
        !          5501:       <language>en-US</language>
        !          5502:    </metametadata>
        !          5503:    <technical>
        !          5504:       <format>text/html</format>
        !          5505:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=142</location>
        !          5506:       <requirements>
        !          5507:          <type>Platform</type>
        !          5508:          <name>Java Virtual Machine, PC, SGI, Sun Sparc</name>
        !          5509:       </requirements>
        !          5510:       <requirements>
        !          5511:          <type>Operating System</type>
        !          5512:          <name>All</name>
        !          5513:       </requirements>
        !          5514:       <requirements>
        !          5515:          <type>Programming Language</type>
        !          5516:          <name>Fortran, Java, XML</name>
        !          5517:       </requirements>
        !          5518:    </technical>
        !          5519:    <educational>
        !          5520:       <intendedenduserrole>Learner</intendedenduserrole>
        !          5521:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          5522:       <learningcontext>Higher Education</learningcontext>
        !          5523:       <learningcontext>Secondary Education</learningcontext>
        !          5524:    </educational>
        !          5525:    <rights>
        !          5526:       <copyrightandotherrestrictions>yes</copyrightandotherrestrictions>
        !          5527:       <description>Copyright (C) 2001 by Michael D. Elder</description>
        !          5528:    </rights>
        !          5529:    <classification>
        !          5530:       <purpose>Educational Objective</purpose>
        !          5531:       <taxonpath>
        !          5532:          <source>ACM Computer Science Curriculum</source>
        !          5533:          <taxon>
        !          5534:             <entry>Architecture Methods</entry>
        !          5535:          </taxon>
        !          5536:       </taxonpath>
        !          5537:       <description>The type of class that this resource is best suited for</description>
        !          5538:    </classification>
        !          5539:    <classification>
        !          5540:       <purpose>Discipline</purpose>
        !          5541:       <taxonpath>
        !          5542:          <source>ACM Computing Classification System</source>
        !          5543:          <taxon>
        !          5544:             <entry>Software</entry>
        !          5545:          </taxon>
        !          5546:          <taxon>
        !          5547:             <entry>Miscellaneous</entry>
        !          5548:          </taxon>
        !          5549:       </taxonpath>
        !          5550:       <description>The subject classification that best describes the resource</description>
        !          5551:    </classification>
        !          5552: </oai_ims>
        !          5553: </metadata>
        !          5554: </record>
        !          5555: <record>
        !          5556: <header>
        !          5557: <identifier>oai:CSTC:157</identifier>
        !          5558: <datestamp>2001-08-21</datestamp>
        !          5559: </header>
        !          5560: <metadata>
        !          5561: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          5562:    <general>
        !          5563:       <title>A framework to support teaching in distributed systems</title>
        !          5564:       <catalogentry>
        !          5565:          <catalogue>CSTC</catalogue>
        !          5566:          <entry>157</entry>
        !          5567:       </catalogentry>
        !          5568:       <language>English</language>
        !          5569:       <description> Computer networks and distribute systems are characterized by highly dynamic, concurrent, and complex processes. Thus, training in this area requires great effort from both teachers and learners.
        !          5570: Teachers are disatisfied with available methods for presentation, explanation, and exercises, and they
        !          5571: are looking for better methods to support learners.
        !          5572: We have developed and architecture called Highly interactive simulation of algorithms and Protocols (HiSAP), consisting of a framework to build simulations and generate applets from formally specified algorithms or protocols. By modifying this specification and observing the resulting behavior, teaching and learning in a constructive manner is enabled. The framework is open to plug-in tools to show various aspects of HiSAP's behavior.
        !          5573: We present the results of some experiments with HiSAP at three different lectures for graduate students of distributed systems and computer networks.</description>
        !          5574:       <keywords>interactive learning</keywords>
        !          5575:       <keywords>tool kit</keywords>
        !          5576:    </general>
        !          5577:    <lifecycle>
        !          5578:       <status>Final</status>
        !          5579:       <contribute>
        !          5580:          <role>Author</role>
        !          5581:          <entity>
        !          5582: BEGIN:vCard
        !          5583: FN:C. Burger
        !          5584: N:Burger;C.
        !          5585: EMAIL;INTERNET:-
        !          5586: END:vCard
        !          5587: </entity>
        !          5588:          <date datetype="datetime">
        !          5589:          2001-08-21
        !          5590:          </date>
        !          5591:       </contribute>
        !          5592:       <contribute>
        !          5593:          <role>Author</role>
        !          5594:          <entity>
        !          5595: BEGIN:vCard
        !          5596: FN:K. Rothermel
        !          5597: N:Rothermel;K.
        !          5598: EMAIL;INTERNET:-
        !          5599: END:vCard
        !          5600: </entity>
        !          5601:          <date datetype="datetime">
        !          5602:          2001-08-21
        !          5603:          </date>
        !          5604:       </contribute>
        !          5605:    </lifecycle>
        !          5606:    <metametadata>
        !          5607:       <contribute>
        !          5608:          <role>Contributor</role>
        !          5609:          <entity>
        !          5610: BEGIN:vCard
        !          5611: FN:Hussein Suleman
        !          5612: N:Suleman;Hussein
        !          5613: EMAIL;INTERNET:hussein@vt.edu
        !          5614: ORG:;
        !          5615: END:vCard
        !          5616: </entity>
        !          5617:          <date datetype="datetime">
        !          5618:          2001-08-21
        !          5619:          </date>
        !          5620:       </contribute>
        !          5621:       <language>en-US</language>
        !          5622:    </metametadata>
        !          5623:    <technical>
        !          5624:       <format>text/html</format>
        !          5625:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=157</location>
        !          5626:    </technical>
        !          5627:    <educational>
        !          5628:       <intendedenduserrole>Learner</intendedenduserrole>
        !          5629:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          5630:       <learningcontext>Higher Education</learningcontext>
        !          5631:       <learningcontext>Secondary Education</learningcontext>
        !          5632:    </educational>
        !          5633:    <classification>
        !          5634:       <purpose>Educational Objective</purpose>
        !          5635:       <taxonpath>
        !          5636:          <source>ACM Computer Science Curriculum</source>
        !          5637:          <taxon>
        !          5638:             <entry>Architecture Methods</entry>
        !          5639:          </taxon>
        !          5640:       </taxonpath>
        !          5641:       <description>The type of class that this resource is best suited for</description>
        !          5642:    </classification>
        !          5643:    <classification>
        !          5644:       <purpose>Discipline</purpose>
        !          5645:       <taxonpath>
        !          5646:          <source>ACM Computing Classification System</source>
        !          5647:          <taxon>
        !          5648:             <entry>Information Systems</entry>
        !          5649:          </taxon>
        !          5650:          <taxon>
        !          5651:             <entry>Information Interfaces and Presentation</entry>
        !          5652:          </taxon>
        !          5653:       </taxonpath>
        !          5654:       <description>The subject classification that best describes the resource</description>
        !          5655:    </classification>
        !          5656:    <classification>
        !          5657:       <purpose>Discipline</purpose>
        !          5658:       <taxonpath>
        !          5659:          <source>ACM Computing Classification System</source>
        !          5660:          <taxon>
        !          5661:             <entry>Computer Systems Organization</entry>
        !          5662:          </taxon>
        !          5663:          <taxon>
        !          5664:             <entry>Computer-Communication Networks</entry>
        !          5665:          </taxon>
        !          5666:       </taxonpath>
        !          5667:       <description>The subject classification that best describes the resource</description>
        !          5668:    </classification>
        !          5669:    <classification>
        !          5670:       <purpose>Discipline</purpose>
        !          5671:       <taxonpath>
        !          5672:          <source>ACM Computing Classification System</source>
        !          5673:          <taxon>
        !          5674:             <entry>Computing Methodologies</entry>
        !          5675:          </taxon>
        !          5676:          <taxon>
        !          5677:             <entry>Simulation and Modeling</entry>
        !          5678:          </taxon>
        !          5679:       </taxonpath>
        !          5680:       <description>The subject classification that best describes the resource</description>
        !          5681:    </classification>
        !          5682:    <classification>
        !          5683:       <purpose>Discipline</purpose>
        !          5684:       <taxonpath>
        !          5685:          <source>ACM Computing Classification System</source>
        !          5686:          <taxon>
        !          5687:             <entry>Computing Milieux</entry>
        !          5688:          </taxon>
        !          5689:          <taxon>
        !          5690:             <entry>Computers and Education</entry>
        !          5691:          </taxon>
        !          5692:       </taxonpath>
        !          5693:       <description>The subject classification that best describes the resource</description>
        !          5694:    </classification>
        !          5695: </oai_ims>
        !          5696: </metadata>
        !          5697: </record>
        !          5698: <record>
        !          5699: <header>
        !          5700: <identifier>oai:CSTC:156</identifier>
        !          5701: <datestamp>2001-08-21</datestamp>
        !          5702: </header>
        !          5703: <metadata>
        !          5704: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          5705:    <general>
        !          5706:       <title>Greetings from the guest editor</title>
        !          5707:       <catalogentry>
        !          5708:          <catalogue>CSTC</catalogue>
        !          5709:          <entry>156</entry>
        !          5710:       </catalogentry>
        !          5711:       <language>English</language>
        !          5712:       <description> Introduction to special issue on multimedia</description>
        !          5713:       <keywords>JERIC</keywords>
        !          5714:    </general>
        !          5715:    <lifecycle>
        !          5716:       <status>Final</status>
        !          5717:       <contribute>
        !          5718:          <role>Author</role>
        !          5719:          <entity>
        !          5720: BEGIN:vCard
        !          5721: FN:Rachelle S. Heller
        !          5722: N:Heller;Rachelle S.
        !          5723: EMAIL;INTERNET:sheller@seas.gwu.edu
        !          5724: END:vCard
        !          5725: </entity>
        !          5726:          <date datetype="datetime">
        !          5727:          2001-08-21
        !          5728:          </date>
        !          5729:       </contribute>
        !          5730:    </lifecycle>
        !          5731:    <metametadata>
        !          5732:       <contribute>
        !          5733:          <role>Contributor</role>
        !          5734:          <entity>
        !          5735: BEGIN:vCard
        !          5736: FN:Hussein Suleman
        !          5737: N:Suleman;Hussein
        !          5738: EMAIL;INTERNET:hussein@vt.edu
        !          5739: ORG:;
        !          5740: END:vCard
        !          5741: </entity>
        !          5742:          <date datetype="datetime">
        !          5743:          2001-08-21
        !          5744:          </date>
        !          5745:       </contribute>
        !          5746:       <language>en-US</language>
        !          5747:    </metametadata>
        !          5748:    <technical>
        !          5749:       <format>text/html</format>
        !          5750:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=156</location>
        !          5751:    </technical>
        !          5752:    <educational>
        !          5753:       <intendedenduserrole>Learner</intendedenduserrole>
        !          5754:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          5755:       <learningcontext>Higher Education</learningcontext>
        !          5756:       <learningcontext>Secondary Education</learningcontext>
        !          5757:    </educational>
        !          5758:    <classification>
        !          5759:       <purpose>Educational Objective</purpose>
        !          5760:       <taxonpath>
        !          5761:          <source>ACM Computer Science Curriculum</source>
        !          5762:          <taxon>
        !          5763:             <entry>Other</entry>
        !          5764:          </taxon>
        !          5765:       </taxonpath>
        !          5766:       <description>The type of class that this resource is best suited for</description>
        !          5767:    </classification>
        !          5768:    <classification>
        !          5769:       <purpose>Discipline</purpose>
        !          5770:       <taxonpath>
        !          5771:          <source>ACM Computing Classification System</source>
        !          5772:          <taxon>
        !          5773:             <entry>General Literature</entry>
        !          5774:          </taxon>
        !          5775:          <taxon>
        !          5776:             <entry>Introductory and Survey</entry>
        !          5777:          </taxon>
        !          5778:       </taxonpath>
        !          5779:       <description>The subject classification that best describes the resource</description>
        !          5780:    </classification>
        !          5781: </oai_ims>
        !          5782: </metadata>
        !          5783: </record>
        !          5784: <record>
        !          5785: <header>
        !          5786: <identifier>oai:CSTC:155</identifier>
        !          5787: <datestamp>2001-08-21</datestamp>
        !          5788: </header>
        !          5789: <metadata>
        !          5790: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          5791:    <general>
        !          5792:       <title>Editorial: Introducing the ACM Journal on Educational Resources in Computing</title>
        !          5793:       <catalogentry>
        !          5794:          <catalogue>CSTC</catalogue>
        !          5795:          <entry>155</entry>
        !          5796:       </catalogentry>
        !          5797:       <language>English</language>
        !          5798:       <description> Introduction to first issue of JERIC</description>
        !          5799:       <keywords>JERIC</keywords>
        !          5800:    </general>
        !          5801:    <lifecycle>
        !          5802:       <status>Final</status>
        !          5803:       <contribute>
        !          5804:          <role>Author</role>
        !          5805:          <entity>
        !          5806: BEGIN:vCard
        !          5807: FN:Edward A. Fox
        !          5808: N:Fox;Edward A.
        !          5809: EMAIL;INTERNET:fox@vt.edu
        !          5810: END:vCard
        !          5811: </entity>
        !          5812:          <date datetype="datetime">
        !          5813:          2001-08-21
        !          5814:          </date>
        !          5815:       </contribute>
        !          5816:       <contribute>
        !          5817:          <role>Author</role>
        !          5818:          <entity>
        !          5819: BEGIN:vCard
        !          5820: FN:Lillian N. Cassel
        !          5821: N:Cassel;Lillian N.
        !          5822: EMAIL;INTERNET:cassel@acm.org
        !          5823: END:vCard
        !          5824: </entity>
        !          5825:          <date datetype="datetime">
        !          5826:          2001-08-21
        !          5827:          </date>
        !          5828:       </contribute>
        !          5829:    </lifecycle>
        !          5830:    <metametadata>
        !          5831:       <contribute>
        !          5832:          <role>Contributor</role>
        !          5833:          <entity>
        !          5834: BEGIN:vCard
        !          5835: FN:Hussein Suleman
        !          5836: N:Suleman;Hussein
        !          5837: EMAIL;INTERNET:hussein@vt.edu
        !          5838: ORG:;
        !          5839: END:vCard
        !          5840: </entity>
        !          5841:          <date datetype="datetime">
        !          5842:          2001-08-21
        !          5843:          </date>
        !          5844:       </contribute>
        !          5845:       <language>en-US</language>
        !          5846:    </metametadata>
        !          5847:    <technical>
        !          5848:       <format>text/html</format>
        !          5849:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=155</location>
        !          5850:    </technical>
        !          5851:    <educational>
        !          5852:       <intendedenduserrole>Learner</intendedenduserrole>
        !          5853:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          5854:       <learningcontext>Higher Education</learningcontext>
        !          5855:       <learningcontext>Secondary Education</learningcontext>
        !          5856:    </educational>
        !          5857:    <classification>
        !          5858:       <purpose>Educational Objective</purpose>
        !          5859:       <taxonpath>
        !          5860:          <source>ACM Computer Science Curriculum</source>
        !          5861:          <taxon>
        !          5862:             <entry>Other</entry>
        !          5863:          </taxon>
        !          5864:       </taxonpath>
        !          5865:       <description>The type of class that this resource is best suited for</description>
        !          5866:    </classification>
        !          5867:    <classification>
        !          5868:       <purpose>Discipline</purpose>
        !          5869:       <taxonpath>
        !          5870:          <source>ACM Computing Classification System</source>
        !          5871:          <taxon>
        !          5872:             <entry>General Literature</entry>
        !          5873:          </taxon>
        !          5874:          <taxon>
        !          5875:             <entry>Introductory and Survey</entry>
        !          5876:          </taxon>
        !          5877:       </taxonpath>
        !          5878:       <description>The subject classification that best describes the resource</description>
        !          5879:    </classification>
        !          5880: </oai_ims>
        !          5881: </metadata>
        !          5882: </record>
        !          5883: <record>
        !          5884: <header>
        !          5885: <identifier>oai:CSTC:148</identifier>
        !          5886: <datestamp>2001-09-06</datestamp>
        !          5887: </header>
        !          5888: <metadata>
        !          5889: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          5890:    <general>
        !          5891:       <title>Empirical Study of Course Scheduling Methods</title>
        !          5892:       <catalogentry>
        !          5893:          <catalogue>CSTC</catalogue>
        !          5894:          <entry>148</entry>
        !          5895:       </catalogentry>
        !          5896:       <language>English</language>
        !          5897:       <description> Authors: Prakash Ojha Abigail Walker Jennifer Wanner
        !          5898: Hope College Xavier University
        !          5899: Computer Science Mathematics and Computer Science
        !          5900: Holland MI 49423 Cincinnati OH 45207-4441
        !          5901: ojha@cs.hope.edu awalker@cerebro.xu.edu wanner@cerebro.xu.edu
        !          5902: Research advisor: Gary Lewandowski, Xavier University,
        !          5903: lewandow@cerebro.xu.edu
        !          5904: Poster Title: Empirical Study of Course Scheduling Methods
        !          5905: Category: Undergraduate
        !          5906: Extended Abstract:
        !          5907: Problem and Motivation
        !          5908: Course scheduling involves building a timetable for courses such that
        !          5909: the students who want to take courses can successfully take every
        !          5910: course they would like. There are many variations to this problem,
        !          5911: including inclusion of faculty constraints, room constraints, and
        !          5912: multiple sections. The problem is known to be NP-Complete, thus many
        !          5913: researchers have worked on approximation solutions to the problem.
        !          5914: Researchers have generally focused on one solution method, one
        !          5915: unique version of the problem definition, and one set of data based on
        !          5916: local needs. This localization of the problem has resulted in many
        !          5917: studies but no general consensus of the best method available.
        !          5918: In this study, we explore several methods from the literature on a single
        !          5919: definition of the problem, and on a common set of data. Our goals are
        !          5920: two-fold. First, we provide a problem statement, data, and a random
        !          5921: data generator to facilitate easy benchmarking of methods and techniques.
        !          5922: Second, we explore the best method for those who may be non-experts
        !          5923: and need to schedule courses.
        !          5924: Background and Related Work
        !          5925: While a great deal of research has been done on scheduling methods,
        !          5926: our study concentrates on two of the most promising efforts:
        !          5927: iterative improvement and linear programming. Iterative improvement
        !          5928: methods for scheduling including faculty constraints have been studied
        !          5929: in particular by Glover [3], and Chahal and DeWerra [1]. Hertz's use
        !          5930: of Tabu search considers many different constraints [4]; we have
        !          5931: adopted many of these constraints in our benchmark formulation of the
        !          5932: problem. Our modification to the problem and our new data provides a
        !          5933: different testbed for this algorithm and allows it to be compared
        !          5934: against other methods. Linear programming allows one to formulate an
        !          5935: equation for the optimal solution to the problem; practical solutions
        !          5936: involving this method are infrequent [2], and do not consider many of
        !          5937: the constraints we consider.
        !          5938: Approach and Uniqueness
        !          5939: We address the problem of comparing results from the literature in two
        !          5940: ways. First, we define one statement of the course scheduling problem,
        !          5941: involving faculty, students, and multiple sections, and adapt several of
        !          5942: the approaches from the literature to this problem. Thus, any comparison
        !          5943: of the approaches will start from the same problem definition. Second,
        !          5944: we provide a random data generator that generates student course
        !          5945: requests in such a way that an optimal solution must exist. Finally, we
        !          5946: have studied five methods for course scheduling in our study: A greedy
        !          5947: algorithm that simply schedules courses to the first available time
        !          5948: (results from this simple method give some idea as to the usefulness
        !          5949: of more complex methods), iterative improvement algorithms following a
        !          5950: hill-climbing philosophy and following a "random improvement" philosophy
        !          5951: in which a solution with a poorer evaluation may be used to continue the
        !          5952: search for an improved solution, linear programming, and an algorithm that
        !          5953: creates a bipartite matching problem for scheduling each student based on
        !          5954: the times available for each course requested.
        !          5955: Our formulation of the course scheduling problem used is as follows:
        !          5956: We are given information about the courses (number of sections,
        !          5957: faculty members teaching the course, times at which the course can be
        !          5958: taught), lists of desired student courses, and the number of timeslots
        !          5959: in which to schedule the courses. Courses are grouped into departments
        !          5960: and for each department we have information on how many courses from
        !          5961: that department may be scheduled concurrently (representing room
        !          5962: availability constraints). The goal of the problem is to build a
        !          5963: timetable and schedule for students' courses minimizing student
        !          5964: conflicts while satisfying constraints on faculty and room availability.
        !          5965: This study provides a repeatable and expandable comparison of scheduling
        !          5966: methods. The algorithms were tested on random data and on data from a
        !          5967: DIMACS benchmark for graph coloring that involves course scheduling.
        !          5968: The generator and benchmark data are publically available, thus other
        !          5969: methods can be tested on the same or very similar data.
        !          5970: Results and Contributions
        !          5971: We have developed a data generator that generates student course requests
        !          5972: given the description of a timetable (the number of courses in the table,
        !          5973: and the number of sections of each course), the section bound for each
        !          5974: course, and the number of schedules desired. The generator builds a random
        !          5975: timetable, and then generates student course requests using a backtracking
        !          5976: technique that ensures the student can get each course requested. Information
        !          5977: on which section the student would attend and the time of each course is
        !          5978: stripped from the data so the data appears real to the algorithms.
        !          5979: We conducted a study of the methods described above on thirteen sets
        !          5980: of randomly generated data. Each method was run five times and we used
        !          5981: the median to compare how close each method comes to scheduling courses
        !          5982: optimally. (The Linear Programming method could not be tested because
        !          5983: our formulation resulted in so many variables that our machines ran out
        !          5984: of memory.)
        !          5985: We have drawn the following conclusions from our empirical study. First,
        !          5986: the greedy algorithm is not competitive with other approximation methods,
        !          5987: meaning the time spent developing and using these methods is worthwhile.
        !          5988: Second, iterative improvement is currently the best practical method for
        !          5989: course scheduling when the courses have only a single section each. Third,
        !          5990: when courses have multiple sections each, bipartite matching is very
        !          5991: competitive with the iterative improvement algorithms while running much
        !          5992: faster.
        !          5993: References
        !          5994: [1] N. Chahal and D. deWerra. An interactive system for constructing
        !          5995: timetables on a PC, European Journal of Operations Research, 40, 1989, 32-37.
        !          5996: [2] T. Franklin, E. Jenkins, and K. Woodson. A case study in scheduling
        !          5997: courses, UMAP Journal, 15, no. 2, 1995, 115-122.
        !          5998: [3] F. Glover, Tabu Search, part 1, ORSA Journal on Computing,1,1989, 190-206.
        !          5999: [4] A. Hertz. Finding a feasible course schedule using tabu search,
        !          6000: Discrete Applied Mathematics, 35, 1992, 255-270.</description>
        !          6001:       <keywords>2001 ACM International Student Research Contest</keywords>
        !          6002:       <keywords>2nd Place Undergraduate</keywords>
        !          6003:       <keywords>scheduling</keywords>
        !          6004:       <keywords>experimental algorithms</keywords>
        !          6005:    </general>
        !          6006:    <lifecycle>
        !          6007:       <status>Final</status>
        !          6008:       <contribute>
        !          6009:          <role>Author</role>
        !          6010:          <entity>
        !          6011: BEGIN:vCard
        !          6012: FN:Abigail Walker
        !          6013: N:Walker;Abigail
        !          6014: EMAIL;INTERNET:awalker@cerebro.cs.xu.edu
        !          6015: END:vCard
        !          6016: </entity>
        !          6017:          <date datetype="datetime">
        !          6018:          2001-09-06
        !          6019:          </date>
        !          6020:       </contribute>
        !          6021:       <contribute>
        !          6022:          <role>Author</role>
        !          6023:          <entity>
        !          6024: BEGIN:vCard
        !          6025: FN:Jennifer Rizzo
        !          6026: N:Rizzo;Jennifer
        !          6027: EMAIL;INTERNET:wanner@cerebro.cs.xu.edu
        !          6028: END:vCard
        !          6029: </entity>
        !          6030:          <date datetype="datetime">
        !          6031:          2001-09-06
        !          6032:          </date>
        !          6033:       </contribute>
        !          6034:       <contribute>
        !          6035:          <role>Author</role>
        !          6036:          <entity>
        !          6037: BEGIN:vCard
        !          6038: FN:Prakash Ojha
        !          6039: N:Ojha;Prakash
        !          6040: EMAIL;INTERNET:ojha@cs.hope.edu
        !          6041: END:vCard
        !          6042: </entity>
        !          6043:          <date datetype="datetime">
        !          6044:          2001-09-06
        !          6045:          </date>
        !          6046:       </contribute>
        !          6047:    </lifecycle>
        !          6048:    <metametadata>
        !          6049:       <contribute>
        !          6050:          <role>Contributor</role>
        !          6051:          <entity>
        !          6052: BEGIN:vCard
        !          6053: FN:Gary Lewandowski
        !          6054: N:Lewandowski;Gary
        !          6055: EMAIL;INTERNET:lewandow@cerebro.cs.xu.edu
        !          6056: ORG:Xavier University;
        !          6057: END:vCard
        !          6058: </entity>
        !          6059:          <date datetype="datetime">
        !          6060:          2001-09-06
        !          6061:          </date>
        !          6062:       </contribute>
        !          6063:       <language>en-US</language>
        !          6064:    </metametadata>
        !          6065:    <technical>
        !          6066:       <format>text/html</format>
        !          6067:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=148</location>
        !          6068:       <requirements>
        !          6069:          <type>Operating System</type>
        !          6070:          <name>All</name>
        !          6071:       </requirements>
        !          6072:    </technical>
        !          6073:    <educational>
        !          6074:       <intendedenduserrole>Learner</intendedenduserrole>
        !          6075:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          6076:       <learningcontext>Higher Education</learningcontext>
        !          6077:       <learningcontext>Secondary Education</learningcontext>
        !          6078:    </educational>
        !          6079:    <rights>
        !          6080:       <copyrightandotherrestrictions>yes</copyrightandotherrestrictions>
        !          6081:       <description>Copyright the authors, distribution allowed as long as the work is attributed to them.</description>
        !          6082:    </rights>
        !          6083:    <classification>
        !          6084:       <purpose>Educational Objective</purpose>
        !          6085:       <taxonpath>
        !          6086:          <source>ACM Computer Science Curriculum</source>
        !          6087:          <taxon>
        !          6088:             <entry>Algorithms and Data Structures</entry>
        !          6089:          </taxon>
        !          6090:       </taxonpath>
        !          6091:       <description>The type of class that this resource is best suited for</description>
        !          6092:    </classification>
        !          6093:    <classification>
        !          6094:       <purpose>Educational Objective</purpose>
        !          6095:       <taxonpath>
        !          6096:          <source>ACM Computer Science Curriculum</source>
        !          6097:          <taxon>
        !          6098:             <entry>Artificial Intelligence and Robotics</entry>
        !          6099:          </taxon>
        !          6100:       </taxonpath>
        !          6101:       <description>The type of class that this resource is best suited for</description>
        !          6102:    </classification>
        !          6103:    <classification>
        !          6104:       <purpose>Discipline</purpose>
        !          6105:       <taxonpath>
        !          6106:          <source>ACM Computing Classification System</source>
        !          6107:          <taxon>
        !          6108:             <entry>Software</entry>
        !          6109:          </taxon>
        !          6110:          <taxon>
        !          6111:             <entry>Miscellaneous</entry>
        !          6112:          </taxon>
        !          6113:       </taxonpath>
        !          6114:       <description>The subject classification that best describes the resource</description>
        !          6115:    </classification>
        !          6116:    <classification>
        !          6117:       <purpose>Discipline</purpose>
        !          6118:       <taxonpath>
        !          6119:          <source>ACM Computing Classification System</source>
        !          6120:          <taxon>
        !          6121:             <entry>Theory of Computation</entry>
        !          6122:          </taxon>
        !          6123:          <taxon>
        !          6124:             <entry>Analysis of Algorithms and Problem Complexity</entry>
        !          6125:          </taxon>
        !          6126:       </taxonpath>
        !          6127:       <description>The subject classification that best describes the resource</description>
        !          6128:    </classification>
        !          6129: </oai_ims>
        !          6130: </metadata>
        !          6131: </record>
        !          6132: <record>
        !          6133: <header>
        !          6134: <identifier>oai:CSTC:159</identifier>
        !          6135: <datestamp>2001-08-21</datestamp>
        !          6136: </header>
        !          6137: <metadata>
        !          6138: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          6139:    <general>
        !          6140:       <title>Course and exercise sequencing using metadata in adaptive hypermedia learning</title>
        !          6141:       <catalogentry>
        !          6142:          <catalogue>CSTC</catalogue>
        !          6143:          <entry>159</entry>
        !          6144:       </catalogentry>
        !          6145:       <language>English</language>
        !          6146:       <description> &lt;p&gt;In the last few years the (semi-) automatic sequencing of course material has become an important research issue, particularly the standardization of metadata for educational resources. Sequencing can help to generate hypermedia documents which, at their best match the learner's needs. To perform (semi-) automatic course sequencing, a knowledge library as well as modular resources can be used. Both must be described by metadata.&lt;/p&gt;
        !          6147: &lt;p&gt;First, metadata standards (IEEE Learning Objects Metadata, Instructional Mangement Systems Global Learning Consortium, Dublin Core) are analyzed with regard to course sequencing. As an application example, Multibook, an adaptive hypermedia system used to teach multimedia technology, is described. Multibook uses metadata to create course sequences semi-automatically. In this article we explain how a knowledge library can be used to create exercises automatically. We give an example of how courses can be sequenced in general by analyzing the creation of exercises. An evaluation of our system shows the advantages and drawbacks of the automatic sequencing approach.&lt;/p&gt;</description>
        !          6148:       <keywords>Documentation</keywords>
        !          6149:       <keywords>Management</keywords>
        !          6150:    </general>
        !          6151:    <lifecycle>
        !          6152:       <status>Final</status>
        !          6153:       <contribute>
        !          6154:          <role>Author</role>
        !          6155:          <entity>
        !          6156: BEGIN:vCard
        !          6157: FN:Stephan Fischer
        !          6158: N:Fischer;Stephan
        !          6159: EMAIL;INTERNET:-
        !          6160: END:vCard
        !          6161: </entity>
        !          6162:          <date datetype="datetime">
        !          6163:          2001-08-21
        !          6164:          </date>
        !          6165:       </contribute>
        !          6166:    </lifecycle>
        !          6167:    <metametadata>
        !          6168:       <contribute>
        !          6169:          <role>Contributor</role>
        !          6170:          <entity>
        !          6171: BEGIN:vCard
        !          6172: FN:Hussein Suleman
        !          6173: N:Suleman;Hussein
        !          6174: EMAIL;INTERNET:hussein@vt.edu
        !          6175: ORG:;
        !          6176: END:vCard
        !          6177: </entity>
        !          6178:          <date datetype="datetime">
        !          6179:          2001-08-21
        !          6180:          </date>
        !          6181:       </contribute>
        !          6182:       <language>en-US</language>
        !          6183:    </metametadata>
        !          6184:    <technical>
        !          6185:       <format>text/html</format>
        !          6186:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=159</location>
        !          6187:    </technical>
        !          6188:    <educational>
        !          6189:       <intendedenduserrole>Learner</intendedenduserrole>
        !          6190:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          6191:       <learningcontext>Higher Education</learningcontext>
        !          6192:       <learningcontext>Secondary Education</learningcontext>
        !          6193:    </educational>
        !          6194:    <classification>
        !          6195:       <purpose>Educational Objective</purpose>
        !          6196:       <taxonpath>
        !          6197:          <source>ACM Computer Science Curriculum</source>
        !          6198:          <taxon>
        !          6199:             <entry>Database and Information Retrieval</entry>
        !          6200:          </taxon>
        !          6201:       </taxonpath>
        !          6202:       <description>The type of class that this resource is best suited for</description>
        !          6203:    </classification>
        !          6204:    <classification>
        !          6205:       <purpose>Discipline</purpose>
        !          6206:       <taxonpath>
        !          6207:          <source>ACM Computing Classification System</source>
        !          6208:          <taxon>
        !          6209:             <entry>Information Systems</entry>
        !          6210:          </taxon>
        !          6211:          <taxon>
        !          6212:             <entry>Information Interfaces and Presentation</entry>
        !          6213:          </taxon>
        !          6214:       </taxonpath>
        !          6215:       <description>The subject classification that best describes the resource</description>
        !          6216:    </classification>
        !          6217:    <classification>
        !          6218:       <purpose>Discipline</purpose>
        !          6219:       <taxonpath>
        !          6220:          <source>ACM Computing Classification System</source>
        !          6221:          <taxon>
        !          6222:             <entry>Computing Milieux</entry>
        !          6223:          </taxon>
        !          6224:          <taxon>
        !          6225:             <entry>Computers and Education</entry>
        !          6226:          </taxon>
        !          6227:       </taxonpath>
        !          6228:       <description>The subject classification that best describes the resource</description>
        !          6229:    </classification>
        !          6230: </oai_ims>
        !          6231: </metadata>
        !          6232: </record>
        !          6233: <record>
        !          6234: <header>
        !          6235: <identifier>oai:CSTC:160</identifier>
        !          6236: <datestamp>2001-08-21</datestamp>
        !          6237: </header>
        !          6238: <metadata>
        !          6239: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          6240:    <general>
        !          6241:       <title>Using a theoretical multimedia taxonomy framework</title>
        !          6242:       <catalogentry>
        !          6243:          <catalogue>CSTC</catalogue>
        !          6244:          <entry>160</entry>
        !          6245:       </catalogentry>
        !          6246:       <language>English</language>
        !          6247:       <description> &lt;P&gt;Multimedia (MM) is a polysemous term, a term with many definitions, and in this case, many roots. In this paper, multimedia is defined as the seamless integration of two or more media. Each ancestor brings another requirement, muddying the field and making it difficult to work through. A multimedia taxonomy based on a previous media taxonomy is proposed to help organize the discipline. The taxonomy helps to classify the space called multimedia and to draw attention to difficult issues. The paper outlines the forms contributing to multimedia--text, sound, graphics, and motion--and aligns them with probable formats--elaboration, representation, and abstraction-- and sets them within a context--audience, discipline, interactivity, quality, usefulness, and aesthetics. The contexts are more clearly defined in two areas: interactivity and the information basis for a discipline. Examples are presented describing the use of the taxonomy in the design and evaluation of student projects in a computer science-based multimedia course.&lt;p&gt;</description>
        !          6248:       <keywords>computer uses in education</keywords>
        !          6249:       <keywords>evaluation</keywords>
        !          6250:       <keywords>multimedia</keywords>
        !          6251:       <keywords>design</keywords>
        !          6252:       <keywords>theory</keywords>
        !          6253:    </general>
        !          6254:    <lifecycle>
        !          6255:       <status>Final</status>
        !          6256:       <contribute>
        !          6257:          <role>Author</role>
        !          6258:          <entity>
        !          6259: BEGIN:vCard
        !          6260: FN:Rachelle S. Heller
        !          6261: N:Heller;Rachelle S.
        !          6262: EMAIL;INTERNET:-
        !          6263: END:vCard
        !          6264: </entity>
        !          6265:          <date datetype="datetime">
        !          6266:          2001-08-21
        !          6267:          </date>
        !          6268:       </contribute>
        !          6269:       <contribute>
        !          6270:          <role>Author</role>
        !          6271:          <entity>
        !          6272: BEGIN:vCard
        !          6273: FN:C. Dianne Martin
        !          6274: N:Martin;C. Dianne
        !          6275: EMAIL;INTERNET:-
        !          6276: END:vCard
        !          6277: </entity>
        !          6278:          <date datetype="datetime">
        !          6279:          2001-08-21
        !          6280:          </date>
        !          6281:       </contribute>
        !          6282:       <contribute>
        !          6283:          <role>Author</role>
        !          6284:          <entity>
        !          6285: BEGIN:vCard
        !          6286: FN:Nuzi Haneef
        !          6287: N:Haneef;Nuzi
        !          6288: EMAIL;INTERNET:-
        !          6289: END:vCard
        !          6290: </entity>
        !          6291:          <date datetype="datetime">
        !          6292:          2001-08-21
        !          6293:          </date>
        !          6294:       </contribute>
        !          6295:    </lifecycle>
        !          6296:    <metametadata>
        !          6297:       <contribute>
        !          6298:          <role>Contributor</role>
        !          6299:          <entity>
        !          6300: BEGIN:vCard
        !          6301: FN:Hussein Suleman
        !          6302: N:Suleman;Hussein
        !          6303: EMAIL;INTERNET:hussein@vt.edu
        !          6304: ORG:;
        !          6305: END:vCard
        !          6306: </entity>
        !          6307:          <date datetype="datetime">
        !          6308:          2001-08-21
        !          6309:          </date>
        !          6310:       </contribute>
        !          6311:       <language>en-US</language>
        !          6312:    </metametadata>
        !          6313:    <technical>
        !          6314:       <format>text/html</format>
        !          6315:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=160</location>
        !          6316:    </technical>
        !          6317:    <educational>
        !          6318:       <intendedenduserrole>Learner</intendedenduserrole>
        !          6319:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          6320:       <learningcontext>Higher Education</learningcontext>
        !          6321:       <learningcontext>Secondary Education</learningcontext>
        !          6322:    </educational>
        !          6323:    <classification>
        !          6324:       <purpose>Educational Objective</purpose>
        !          6325:       <taxonpath>
        !          6326:          <source>ACM Computer Science Curriculum</source>
        !          6327:          <taxon>
        !          6328:             <entry>Other</entry>
        !          6329:          </taxon>
        !          6330:       </taxonpath>
        !          6331:       <description>The type of class that this resource is best suited for</description>
        !          6332:    </classification>
        !          6333:    <classification>
        !          6334:       <purpose>Discipline</purpose>
        !          6335:       <taxonpath>
        !          6336:          <source>ACM Computing Classification System</source>
        !          6337:          <taxon>
        !          6338:             <entry>Information Systems</entry>
        !          6339:          </taxon>
        !          6340:          <taxon>
        !          6341:             <entry>Information Interfaces and Presentation</entry>
        !          6342:          </taxon>
        !          6343:       </taxonpath>
        !          6344:       <description>The subject classification that best describes the resource</description>
        !          6345:    </classification>
        !          6346: </oai_ims>
        !          6347: </metadata>
        !          6348: </record>
        !          6349: <record>
        !          6350: <header>
        !          6351: <identifier>oai:CSTC:161</identifier>
        !          6352: <datestamp>2001-08-21</datestamp>
        !          6353: </header>
        !          6354: <metadata>
        !          6355: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          6356:    <general>
        !          6357:       <title>&lt;I&gt;L&lt;/I&gt;&lt;SUP&gt;3&lt;/SUP&gt;--towards an open learning environment</title>
        !          6358:       <catalogentry>
        !          6359:          <catalogue>CSTC</catalogue>
        !          6360:          <entry>161</entry>
        !          6361:       </catalogentry>
        !          6362:       <language>English</language>
        !          6363:       <description> &lt;P&gt;This article describe the use of dedicated ontology for teaching in the context of the &lt;I&gt;L&lt;/I&gt;&lt;SUP&gt;3&lt;/SUP&gt; project, a national joint project for deploying further vocational education in Germany. The requirements for the open &lt;I&gt;L&lt;/I&gt;&lt;SUP&gt;3&lt;/SUP&gt; learning infrastructure are presented in order to motivate our approach to metamodeling learning resources and services by using dedicated ontolgies of pedagogics and didactics. The basic concepts and parts of the pedagogical ontology are outlined, and the practical implications for several of today's problems such as authoring and design, retrieval and adaptive of training resources are illustrated. An overview of the &lt;I&gt;L&lt;/I&gt;&lt;SUP&gt;3&lt;/SUP&gt; runtime architecture shows how the didactical ontology is used to deliver adaptive learning.&lt;/P&gt;</description>
        !          6364:       <keywords>adaptive courses delivery</keywords>
        !          6365:       <keywords>authoring</keywords>
        !          6366:       <keywords>environment for web-based training</keywords>
        !          6367:       <keywords>didatics</keywords>
        !          6368:       <keywords>pedagogical ontology</keywords>
        !          6369:       <keywords>reuse of learning resources</keywords>
        !          6370:       <keywords>design</keywords>
        !          6371:       <keywords>human factors</keywords>
        !          6372:       <keywords>standardization</keywords>
        !          6373:    </general>
        !          6374:    <lifecycle>
        !          6375:       <status>Final</status>
        !          6376:       <contribute>
        !          6377:          <role>Author</role>
        !          6378:          <entity>
        !          6379: BEGIN:vCard
        !          6380: FN:Torsten Leidig
        !          6381: N:Leidig;Torsten
        !          6382: EMAIL;INTERNET:-
        !          6383: END:vCard
        !          6384: </entity>
        !          6385:          <date datetype="datetime">
        !          6386:          2001-08-21
        !          6387:          </date>
        !          6388:       </contribute>
        !          6389:    </lifecycle>
        !          6390:    <metametadata>
        !          6391:       <contribute>
        !          6392:          <role>Contributor</role>
        !          6393:          <entity>
        !          6394: BEGIN:vCard
        !          6395: FN:Hussein Suleman
        !          6396: N:Suleman;Hussein
        !          6397: EMAIL;INTERNET:hussein@vt.edu
        !          6398: ORG:;
        !          6399: END:vCard
        !          6400: </entity>
        !          6401:          <date datetype="datetime">
        !          6402:          2001-08-21
        !          6403:          </date>
        !          6404:       </contribute>
        !          6405:       <language>en-US</language>
        !          6406:    </metametadata>
        !          6407:    <technical>
        !          6408:       <format>text/html</format>
        !          6409:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=161</location>
        !          6410:    </technical>
        !          6411:    <educational>
        !          6412:       <intendedenduserrole>Learner</intendedenduserrole>
        !          6413:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          6414:       <learningcontext>Higher Education</learningcontext>
        !          6415:       <learningcontext>Secondary Education</learningcontext>
        !          6416:    </educational>
        !          6417:    <classification>
        !          6418:       <purpose>Educational Objective</purpose>
        !          6419:       <taxonpath>
        !          6420:          <source>ACM Computer Science Curriculum</source>
        !          6421:          <taxon>
        !          6422:             <entry>Other</entry>
        !          6423:          </taxon>
        !          6424:       </taxonpath>
        !          6425:       <description>The type of class that this resource is best suited for</description>
        !          6426:    </classification>
        !          6427:    <classification>
        !          6428:       <purpose>Discipline</purpose>
        !          6429:       <taxonpath>
        !          6430:          <source>ACM Computing Classification System</source>
        !          6431:          <taxon>
        !          6432:             <entry>Computing Milieux</entry>
        !          6433:          </taxon>
        !          6434:          <taxon>
        !          6435:             <entry>Computers and Education</entry>
        !          6436:          </taxon>
        !          6437:       </taxonpath>
        !          6438:       <description>The subject classification that best describes the resource</description>
        !          6439:    </classification>
        !          6440:    <classification>
        !          6441:       <purpose>Discipline</purpose>
        !          6442:       <taxonpath>
        !          6443:          <source>ACM Computing Classification System</source>
        !          6444:          <taxon>
        !          6445:             <entry>Computing Methodologies</entry>
        !          6446:          </taxon>
        !          6447:          <taxon>
        !          6448:             <entry>Artificial Intelligence</entry>
        !          6449:          </taxon>
        !          6450:       </taxonpath>
        !          6451:       <description>The subject classification that best describes the resource</description>
        !          6452:    </classification>
        !          6453:    <classification>
        !          6454:       <purpose>Discipline</purpose>
        !          6455:       <taxonpath>
        !          6456:          <source>ACM Computing Classification System</source>
        !          6457:          <taxon>
        !          6458:             <entry>Information Systems</entry>
        !          6459:          </taxon>
        !          6460:          <taxon>
        !          6461:             <entry>Information Interfaces and Presentation</entry>
        !          6462:          </taxon>
        !          6463:       </taxonpath>
        !          6464:       <description>The subject classification that best describes the resource</description>
        !          6465:    </classification>
        !          6466:    <classification>
        !          6467:       <purpose>Discipline</purpose>
        !          6468:       <taxonpath>
        !          6469:          <source>ACM Computing Classification System</source>
        !          6470:          <taxon>
        !          6471:             <entry>Information Systems</entry>
        !          6472:          </taxon>
        !          6473:          <taxon>
        !          6474:             <entry>Information Systems Applications</entry>
        !          6475:          </taxon>
        !          6476:       </taxonpath>
        !          6477:       <description>The subject classification that best describes the resource</description>
        !          6478:    </classification>
        !          6479:    <classification>
        !          6480:       <purpose>Discipline</purpose>
        !          6481:       <taxonpath>
        !          6482:          <source>ACM Computing Classification System</source>
        !          6483:          <taxon>
        !          6484:             <entry>Information Systems</entry>
        !          6485:          </taxon>
        !          6486:          <taxon>
        !          6487:             <entry>Information Storage and Retrieval</entry>
        !          6488:          </taxon>
        !          6489:       </taxonpath>
        !          6490:       <description>The subject classification that best describes the resource</description>
        !          6491:    </classification>
        !          6492:    <classification>
        !          6493:       <purpose>Discipline</purpose>
        !          6494:       <taxonpath>
        !          6495:          <source>ACM Computing Classification System</source>
        !          6496:          <taxon>
        !          6497:             <entry>Information Systems</entry>
        !          6498:          </taxon>
        !          6499:          <taxon>
        !          6500:             <entry>Models and Principles</entry>
        !          6501:          </taxon>
        !          6502:       </taxonpath>
        !          6503:       <description>The subject classification that best describes the resource</description>
        !          6504:    </classification>
        !          6505: </oai_ims>
        !          6506: </metadata>
        !          6507: </record>
        !          6508: <record>
        !          6509: <header>
        !          6510: <identifier>oai:CSTC:162</identifier>
        !          6511: <datestamp>2001-08-21</datestamp>
        !          6512: </header>
        !          6513: <metadata>
        !          6514: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          6515:    <general>
        !          6516:       <title>IRI-h, a Java-based distance education system: architecture and performance</title>
        !          6517:       <catalogentry>
        !          6518:          <catalogue>CSTC</catalogue>
        !          6519:          <entry>162</entry>
        !          6520:       </catalogentry>
        !          6521:       <language>English</language>
        !          6522:       <description> &lt;P&gt;We used our Original Interactive Remote Instruction (IRI) system to teach scores of university classes over the past years at sites up to 300 km apart. While this system is a prototype, its use in real classes allows us to deal with crucial issues in distributed education instruction systems. We describe our motivation and vision for a reimplementation of IRI that supports synchronous and asynchronous distance education. This new version, called IRI-h (h for hetergeneous), is coded in Java and executes on several different platforms. IRI-h extends IRI both to multiple platforms and heterogeneous network experiences with the developing prototype, including preliminary performance evaluation, and also unresolved issues still to be addressed.&lt;/P&gt;</description>
        !          6523:       <keywords>Design</keywords>
        !          6524:       <keywords>Management</keywords>
        !          6525:       <keywords>Performance</keywords>
        !          6526:       <keywords>Java</keywords>
        !          6527:       <keywords>heterogeneity</keywords>
        !          6528:       <keywords>platform independence</keywords>
        !          6529:    </general>
        !          6530:    <lifecycle>
        !          6531:       <status>Final</status>
        !          6532:       <contribute>
        !          6533:          <role>Author</role>
        !          6534:          <entity>
        !          6535: BEGIN:vCard
        !          6536: FN:C. Wild
        !          6537: N:Wild;C.
        !          6538: EMAIL;INTERNET:-
        !          6539: END:vCard
        !          6540: </entity>
        !          6541:          <date datetype="datetime">
        !          6542:          2001-08-21
        !          6543:          </date>
        !          6544:       </contribute>
        !          6545:       <contribute>
        !          6546:          <role>Author</role>
        !          6547:          <entity>
        !          6548: BEGIN:vCard
        !          6549: FN:H. Abdel-Wahab
        !          6550: N:Abdel-Wahab;H.
        !          6551: EMAIL;INTERNET:-
        !          6552: END:vCard
        !          6553: </entity>
        !          6554:          <date datetype="datetime">
        !          6555:          2001-08-21
        !          6556:          </date>
        !          6557:       </contribute>
        !          6558:       <contribute>
        !          6559:          <role>Author</role>
        !          6560:          <entity>
        !          6561: BEGIN:vCard
        !          6562: FN:R. Maly
        !          6563: N:Maly;R.
        !          6564: EMAIL;INTERNET:-
        !          6565: END:vCard
        !          6566: </entity>
        !          6567:          <date datetype="datetime">
        !          6568:          2001-08-21
        !          6569:          </date>
        !          6570:       </contribute>
        !          6571:    </lifecycle>
        !          6572:    <metametadata>
        !          6573:       <contribute>
        !          6574:          <role>Contributor</role>
        !          6575:          <entity>
        !          6576: BEGIN:vCard
        !          6577: FN:Hussein Suleman
        !          6578: N:Suleman;Hussein
        !          6579: EMAIL;INTERNET:hussein@vt.edu
        !          6580: ORG:;
        !          6581: END:vCard
        !          6582: </entity>
        !          6583:          <date datetype="datetime">
        !          6584:          2001-08-21
        !          6585:          </date>
        !          6586:       </contribute>
        !          6587:       <language>en-US</language>
        !          6588:    </metametadata>
        !          6589:    <technical>
        !          6590:       <format>text/html</format>
        !          6591:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=162</location>
        !          6592:    </technical>
        !          6593:    <educational>
        !          6594:       <intendedenduserrole>Learner</intendedenduserrole>
        !          6595:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          6596:       <learningcontext>Higher Education</learningcontext>
        !          6597:       <learningcontext>Secondary Education</learningcontext>
        !          6598:    </educational>
        !          6599:    <classification>
        !          6600:       <purpose>Educational Objective</purpose>
        !          6601:       <taxonpath>
        !          6602:          <source>ACM Computer Science Curriculum</source>
        !          6603:          <taxon>
        !          6604:             <entry>Other</entry>
        !          6605:          </taxon>
        !          6606:       </taxonpath>
        !          6607:       <description>The type of class that this resource is best suited for</description>
        !          6608:    </classification>
        !          6609:    <classification>
        !          6610:       <purpose>Discipline</purpose>
        !          6611:       <taxonpath>
        !          6612:          <source>ACM Computing Classification System</source>
        !          6613:          <taxon>
        !          6614:             <entry>Computing Milieux</entry>
        !          6615:          </taxon>
        !          6616:          <taxon>
        !          6617:             <entry>Computers and Education</entry>
        !          6618:          </taxon>
        !          6619:       </taxonpath>
        !          6620:       <description>The subject classification that best describes the resource</description>
        !          6621:    </classification>
        !          6622:    <classification>
        !          6623:       <purpose>Discipline</purpose>
        !          6624:       <taxonpath>
        !          6625:          <source>ACM Computing Classification System</source>
        !          6626:          <taxon>
        !          6627:             <entry>Computer Systems Organization</entry>
        !          6628:          </taxon>
        !          6629:          <taxon>
        !          6630:             <entry>Computer-Communication Networks</entry>
        !          6631:          </taxon>
        !          6632:       </taxonpath>
        !          6633:       <description>The subject classification that best describes the resource</description>
        !          6634:    </classification>
        !          6635: </oai_ims>
        !          6636: </metadata>
        !          6637: </record>
        !          6638: <record>
        !          6639: <header>
        !          6640: <identifier>oai:CSTC:163</identifier>
        !          6641: <datestamp>2001-08-21</datestamp>
        !          6642: </header>
        !          6643: <metadata>
        !          6644: <oai_ims xmlns="http://oai.dlib.vt.edu/metadata/oai_ims" xsi:schemaLocation="http://oai.dlib.vt.edu/metadata/oai_ims http://oai.dlib.vt.edu/OAI/oai_ims.xsd">
        !          6645:    <general>
        !          6646:       <title>Web-based multimedia tools for sharing educational resources</title>
        !          6647:       <catalogentry>
        !          6648:          <catalogue>CSTC</catalogue>
        !          6649:          <entry>163</entry>
        !          6650:       </catalogentry>
        !          6651:       <language>English</language>
        !          6652:       <description> &lt;P&gt;Many educational resources and objects have been developed as Java applets or applications, which can accessed by simply downloading them from various repositories. It is often necessary to share these resources in real time, for instance when an instructor teaches remote students how to use a certain resource explains the theory behind it. We have developed some tools for this purpose that emulate a virtual classroom, and are primarily designed for synchronous sharing of resources. They enable participants to share Java objects in real time and also allow the instructor to dynamically manage the telebearing session.&lt;/P&gt;</description>
        !          6653:       <keywords>Design</keywords>
        !          6654:    </general>
        !          6655:    <lifecycle>
        !          6656:       <status>Final</status>
        !          6657:       <contribute>
        !          6658:          <role>Author</role>
        !          6659:          <entity>
        !          6660: BEGIN:vCard
        !          6661: FN:Nicolas D. Georganas
        !          6662: N:Georganas;Nicolas D.
        !          6663: EMAIL;INTERNET:-
        !          6664: END:vCard
        !          6665: </entity>
        !          6666:          <date datetype="datetime">
        !          6667:          2001-08-21
        !          6668:          </date>
        !          6669:       </contribute>
        !          6670:       <contribute>
        !          6671:          <role>Author</role>
        !          6672:          <entity>
        !          6673: BEGIN:vCard
        !          6674: FN:Abdulmotaleb El Saddik
        !          6675: N:El Saddik;Abdulmotaleb
        !          6676: EMAIL;INTERNET:-
        !          6677: END:vCard
        !          6678: </entity>
        !          6679:          <date datetype="datetime">
        !          6680:          2001-08-21
        !          6681:          </date>
        !          6682:       </contribute>
        !          6683:       <contribute>
        !          6684:          <role>Author</role>
        !          6685:          <entity>
        !          6686: BEGIN:vCard
        !          6687: FN:Shervin Shirmohammadi
        !          6688: N:Shirmohammadi;Shervin
        !          6689: EMAIL;INTERNET:-
        !          6690: END:vCard
        !          6691: </entity>
        !          6692:          <date datetype="datetime">
        !          6693:          2001-08-21
        !          6694:          </date>
        !          6695:       </contribute>
        !          6696:    </lifecycle>
        !          6697:    <metametadata>
        !          6698:       <contribute>
        !          6699:          <role>Contributor</role>
        !          6700:          <entity>
        !          6701: BEGIN:vCard
        !          6702: FN:Hussein Suleman
        !          6703: N:Suleman;Hussein
        !          6704: EMAIL;INTERNET:hussein@vt.edu
        !          6705: ORG:;
        !          6706: END:vCard
        !          6707: </entity>
        !          6708:          <date datetype="datetime">
        !          6709:          2001-08-21
        !          6710:          </date>
        !          6711:       </contribute>
        !          6712:       <language>en-US</language>
        !          6713:    </metametadata>
        !          6714:    <technical>
        !          6715:       <format>text/html</format>
        !          6716:       <location>http://www.cstc.org/cgi-bin/show_abstract.pl?type=official&amp;number=163</location>
        !          6717:    </technical>
        !          6718:    <educational>
        !          6719:       <intendedenduserrole>Learner</intendedenduserrole>
        !          6720:       <intendedenduserrole>Teacher</intendedenduserrole>
        !          6721:       <learningcontext>Higher Education</learningcontext>
        !          6722:       <learningcontext>Secondary Education</learningcontext>
        !          6723:    </educational>
        !          6724:    <classification>
        !          6725:       <purpose>Educational Objective</purpose>
        !          6726:       <taxonpath>
        !          6727:          <source>ACM Computer Science Curriculum</source>
        !          6728:          <taxon>
        !          6729:             <entry>Other</entry>
        !          6730:          </taxon>
        !          6731:       </taxonpath>
        !          6732:       <description>The type of class that this resource is best suited for</description>
        !          6733:    </classification>
        !          6734:    <classification>
        !          6735:       <purpose>Discipline</purpose>
        !          6736:       <taxonpath>
        !          6737:          <source>ACM Computing Classification System</source>
        !          6738:          <taxon>
        !          6739:             <entry>Computing Milieux</entry>
        !          6740:          </taxon>
        !          6741:          <taxon>
        !          6742:             <entry>Computers and Society</entry>
        !          6743:          </taxon>
        !          6744:       </taxonpath>
        !          6745:       <description>The subject classification that best describes the resource</description>
        !          6746:    </classification>
        !          6747:    <classification>
        !          6748:       <purpose>Discipline</purpose>
        !          6749:       <taxonpath>
        !          6750:          <source>ACM Computing Classification System</source>
        !          6751:          <taxon>
        !          6752:             <entry>Computing Milieux</entry>
        !          6753:          </taxon>
        !          6754:          <taxon>
        !          6755:             <entry>Computers and Education</entry>
        !          6756:          </taxon>
        !          6757:       </taxonpath>
        !          6758:       <description>The subject classification that best describes the resource</description>
        !          6759:    </classification>
        !          6760: </oai_ims>
        !          6761: </metadata>
        !          6762: </record>
        !          6763: 
        !          6764: </ListRecords>

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>