- From: Martin McEvoy <martin@weborganics.co.uk>
- Date: Tue, 27 Oct 2009 10:25:27 +0000
- To: Ian Hickson <ian@hixie.ch>
- CC: Jonas Sicking <jonas@sicking.cc>, John Giannandrea <jg@metaweb.com>, public-html@w3.org
Ian Hickson wrote: > On Sun, 25 Oct 2009, Martin McEvoy wrote: > >> Jonas Sicking wrote: >> >>>> Given that RDF has been deployed for a while now, can you give any >>>> example where this feature has been used? I.e. where several >>>> *independent* parties have described properties of the same object, >>>> and used this identifying mechanism to do it. >>>> >> Yes there is one example I can think of ( not in a RDF sense ) I think >> the uid class in microformats hcard is intended to be used as a unique >> identifier of a hcard, it is also a url. The uid identifier is used to >> determine a representative hCard [1]. I like to think of it more as the >> canonical url of a hCard. Itemid and uid do seem very similar in >> concept. >> >> [1] http://microformats.org/wiki/representative-hcard >> > > The Microdata vCard vocabulary excludes UID for this reason (there's a > comment in the source mentioning that itemid="" should be used instead). > > http://www.whatwg.org/specs/vocabs/current-work/ > You mentioned in an earlier email that @itemid is similar to @about in RDFa, @about in RDFa also supports relative urls do you think @itemid should too, I feel it would be useful in situations as I described in my first email[1] where @id and @itemid identify the same thing. [1] http://lists.w3.org/Archives/Public/public-html/2009Oct/0896.html Thanks. -- Martin McEvoy http://weborganics.co.uk/ Add to address book: http://transformr.co.uk/hcard/http://weborganics.co.uk/
Received on Tuesday, 27 October 2009 10:25:54 UTC