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cc-devel - Re: [cc-devel] CC 1.5 and embedding RDF

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Subject: Developer discussion for Creative Commons technology and tools

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  • From: Nathan Yergler <nathan AT creativecommons.org>
  • To: Wendy Bossons <wbossons AT mit.edu>
  • Cc: cc-devel AT lists.ibiblio.org
  • Subject: Re: [cc-devel] CC 1.5 and embedding RDF
  • Date: Thu, 3 Dec 2009 10:38:45 -0800

Hi Wendy,

The two blocks have (had) slightly different purposes; the first one
describes a work with a particular license. The latter only describes
the license.

That said, we no longer recommend embedding either in HTML pages. We
previously recommended embedding the former block in an HTML comment.
While this approach had advantages over other available approaches
when we developed it, it still has lots of problems, including over
verbosity, invisibility to many parsers, and lack of standards
compliance. We're now recommending the use of RDFa to describe the
license of a page. See
http://creativecommons.org/choose/results-one?license-code=by for an
example of the HTML+RDFa needed to describe the license of a work, and
http://wiki.creativecommons.org/ccREL for more details.

Let me know if you have any questions.

Nathan


On Mon, Nov 30, 2009 at 2:51 PM, Wendy Bossons <wbossons AT mit.edu> wrote:
> What is the current recommendation on using the rdf that is returned by the
> CC issue call?
> For example, there are two rdf blocks in the response. Is one for backward
> compatibility? How do you recommend using the response, e.g. if embedding
> the rdf in the page, should one or both of the rdf blocks be used?
> Example from response document:
>
> ...
>
> <rdf>
> <rdf:RDF xmlns="http://creativecommons.org/ns#";
> xmlns:dc="http://purl.org/dc/elements/1.1/";
> xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#";
> xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#";>
> <Work rdf:about="">
> <license
> rdf:resource="http://creativecommons.org/licenses/by/3.0/us/"/>
> </Work>
>
> <License rdf:about="http://creativecommons.org/licenses/by/3.0/us/";>
> <permits rdf:resource="http://creativecommons.org/ns#Reproduction"/>
> <permits rdf:resource="http://creativecommons.org/ns#Distribution"/>
> <requires rdf:resource="http://creativecommons.org/ns#Notice"/>
> <requires rdf:resource="http://creativecommons.org/ns#Attribution"/>
> <permits rdf:resource="http://creativecommons.org/ns#DerivativeWorks"/>
> </License>
> </rdf:RDF>
> </rdf>
> <licenserdf>
> <rdf:RDF xmlns="http://creativecommons.org/ns#";
> xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#";>
> <License rdf:about="http://creativecommons.org/licenses/by/3.0/us/";>
> <permits rdf:resource="http://creativecommons.org/ns#Reproduction"/>
> <permits rdf:resource="http://creativecommons.org/ns#Distribution"/>
> <requires rdf:resource="http://creativecommons.org/ns#Notice"/>
> <requires rdf:resource="http://creativecommons.org/ns#Attribution"/>
> <permits rdf:resource="http://creativecommons.org/ns#DerivativeWorks"/>
> </License>
> </rdf:RDF>
> </licenserdf>
>
> Wendy Bossons
> Web Developer
> Contact Information:
> wbossons AT mit.edu
> 617-253-0770
>
>
>
>
>
>
> _______________________________________________
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> http://lists.ibiblio.org/mailman/listinfo/cc-devel
>
>




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