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Metadata_Description.tex
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Wed Jul 30 12:34:22 2008 UTC (16 years ago) by
bisitz
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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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