File:  [LON-CAPA] / loncom / html / adm / help / tex / Metadata_Description.tex
Revision 1.4: download - view: text, annotated - select for diffs
Wed Jul 30 12:34:22 2008 UTC (16 years ago) by bisitz
Branches: MAIN
CVS tags: version_2_9_X, version_2_9_99_0, version_2_9_1, version_2_9_0, version_2_8_X, version_2_8_99_1, version_2_8_99_0, version_2_8_2, version_2_8_1, version_2_8_0, version_2_7_X, version_2_7_99_1, version_2_7_99_0, version_2_7_1, version_2_7_0, version_2_11_0_RC1, version_2_10_X, version_2_10_1, version_2_10_0_RC2, version_2_10_0_RC1, version_2_10_0, loncapaMITrelate_1, language_hyphenation_merge, language_hyphenation, bz6209-base, bz6209, bz5969, bz2851, PRINT_INCOMPLETE_base, PRINT_INCOMPLETE, HEAD, GCI_3, GCI_2, GCI_1, BZ5971-printing-apage, BZ5434-fox, BZ4492-merge, BZ4492-feature_horizontal_radioresponse
Some optimizations to clarify even more how metadata works

    1: \label{Metadata_Description}
    2: 
    3: \index{Metadata}\label{What Is Metadata?}\emph{Metadata} is \emph{data about data}.
    4: Metadata can often be thought
    5: of as a label on some bit of information that can be useful to people or
    6: computer programs trying to use the data. Without metadata, the person or
    7: computer trying to use the original information would have to guess
    8: what the original data is about.
    9: 
   10: When resources are published at least title, subject and keywords should be
   11: provided so that the resource could be found easily.
   12: 
   13: For example, if you create a problem and
   14: neglect to say in the title or subject of the problem what it is about, then
   15: a human who wants to use that problem would have to read the problem itself
   16: to see what it was about. This is much more difficult than just reading
   17: a title. A computer trying to do the same thing would be out of luck;
   18: it is too stupid to understand the problem statement at all.
   19: 
   20: Another example of metadata is the <title> tag of a web page, which usually shows
   21: up in the title bar of the browser. That is information about the web page
   22: itself and is not actually part of the web page. People use the title information
   23: when they bookmark a page. Search engines
   24: use it as a clue about the content of the web page.
   25: 

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