Difference between revisions of "RDFa"
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* http://skimstone.x-port.net/introduction-to-rdfa | * http://skimstone.x-port.net/introduction-to-rdfa | ||
| − | + | ==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 | ||
| + | <nowiki><a rel="license" href="http://creativecommons.org/licenses/by/2.5/">cc</a></nowiki> | ||
| + | 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"></nowiki> element? | ||
| + | |||
| + | To specify that bar.jpg is licensed, even under a different license, we can qualify the link with an about attribute: | ||
| + | <nowiki><a about="/bar.jpg" rel="license" href="http://creativecommons.org/licenses/by-nc/2.5/">cc</a></nowiki> | ||
| + | Found in http://example.com/foo this says http://example.com/bar.jpg is licensed under CC BY-NC 2.5. | ||
| + | |||
[[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
- http://www.w3.org/TR/xhtml-rdfa-primer/
- http://www.w3.org/2001/sw/BestPractices/HTML/2005-rdfa-syntax
- RDFa.info
- Wikipedia article
Presentations
- http://ben.adida.net/presentations/w3c-2006-04-06/html/w3c
- http://ben.adida.net/presentations/semantic-2006-03-08.pdf
- http://skimstone.x-port.net/introduction-to-rdfa
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.
