Difference between revisions of "RDFa"

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(Presentations)
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* http://skimstone.x-port.net/introduction-to-rdfa
 
* http://skimstone.x-port.net/introduction-to-rdfa
  
{{stub}}
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==Content discovery==
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A key use case for RDFa is the annotation of resources included or embedded in web pages.  Existing annotations apply to the current document.  For example, http://example.com/foo contains
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<nowiki>&lt;a rel="license" href="http://creativecommons.org/licenses/by/2.5/"&gt;cc&lt;/a&gt;</nowiki>
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This says that http://example.com/foo is licensed under CC BY 2.5.  What about http://example.com/bar.jpg which is displayed in http://example.com/foo via a <nowiki>&tl;img src="/bar.jpg"&gt;</nowiki> element?
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To specify that bar.jpg is licensed, even under a different license, we can qualify the link with an about attribute:
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<nowiki>&lt;a about="/bar.jpg" rel="license" href="http://creativecommons.org/licenses/by-nc/2.5/"&gt;cc&lt;/a&gt;</nowiki>
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Found in http://example.com/foo this says http://example.com/bar.jpg is licensed under CC BY-NC 2.5.
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[[Category:Developer]]
 
[[Category:Developer]]
 
[[Category:Metadata]]
 
[[Category:Metadata]]

Revision as of 22:49, 5 September 2006

RDFa allows building metadata into XHTML and other XML documents with attributes. See also RelLicense. MozCC 2 reads RDFa.

References

Presentations

Content discovery

A key use case for RDFa is the annotation of resources included or embedded in web pages. Existing annotations apply to the current document. For example, http://example.com/foo contains

<a rel="license" href="http://creativecommons.org/licenses/by/2.5/">cc</a>

This says that http://example.com/foo is licensed under CC BY 2.5. What about http://example.com/bar.jpg which is displayed in http://example.com/foo via a &tl;img src="/bar.jpg"> element?

To specify that bar.jpg is licensed, even under a different license, we can qualify the link with an about attribute:

<a about="/bar.jpg" rel="license" href="http://creativecommons.org/licenses/by-nc/2.5/">cc</a>

Found in http://example.com/foo this says http://example.com/bar.jpg is licensed under CC BY-NC 2.5.