license is one of the reserved values in RDFa, as it's defined in the XHTML namespace; see http://www.w3.org/TR/rdfa-syntax/#relValues for a list of these values. It's implicit that license is in the XHTML namespace, and any conforming RDFa processor will return a fully qualified URI in that namespace.
You could do cc:license, but these days it's declared to be the same of xhtml:license. Additionally, it appears that some search engines do not use conforming processors to index CC licensed content, instead looking for rel="license", so using a different namespace will impact how they index your content. Nathan On Mon, Dec 7, 2009 at 7:21 AM, Wendy Bossons <[email protected]> wrote: > Why is the metainformation attribute, rel, never prefixed when it references > "license"? > > Example: > <a rel="license" > href="http://creativecommons.org/licenses/by/3.0/us/";>......</a> > > Would it be incorrect to rephrase the above as: > > <a rel="cc:license" xmlns:cc="http://creativecommons.org/ns#"; > href="http://creativecommons.org/licenses/....";>.......</a> > > The reason I ask is the CC LIcense searchable as metadata within the > application I'm working on. If it is to do that, I believe the license > metadata should follow the same pattern as other metadata, such as > > <span xmlns:dc="http://purl.org/dc/...."; href="http://purl.org/dc/dmcitype/"; > rel="dc:type">work</span> > > > ..\Wendy > > > Wendy Bossons > Web Developer > > Contact Information: > [email protected] > 617-253-0770 > > > > > > > On Dec 3, 2009, at 1:38 PM, Nathan Yergler wrote: > >> 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 <[email protected]> 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: >>> [email protected] >>> 617-253-0770 >>> >>> >>> >>> >>> >>> >>> _______________________________________________ >>> cc-devel mailing list >>> [email protected] >>> http://lists.ibiblio.org/mailman/listinfo/cc-devel >>> >>> > > _______________________________________________ cc-devel mailing list [email protected] http://lists.ibiblio.org/mailman/listinfo/cc-devel
