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Re: use of itemref

From: Ivan Herman <ivan@w3.org>
Date: Thu, 25 Aug 2011 17:22:00 +0200
Cc: public-rdfa-wg@w3.org
Message-Id: <543C2306-2F7D-44DF-A2ED-6E1AD800F2DA@w3.org>
To: Lin Clark <lin.w.clark@gmail.com>
Thanks Lin, 

that is valuable information. But, indeed, it would be very important to see whether the same setup could work using RDFa's @about.

As you may have seen on Jeni's G+ discussion, I have given some thought to this in terms of RDFa. Everything can be done of course but the issue we would be facing (and I do not know how microdata solves that, actually) is what 'state' would the referred entry be. What happens to language setting, to @prefix settings, types/vocabularies, etc. What I am afraid of is that the 'referred' part would generate different RDF triples depending on where it is included into, and that sounds problematic to me...

Cheers and thanks!


On Aug 25, 2011, at 16:54 , Lin Clark wrote:

> Stéphane asked me to send an email regarding http://www.w3.org/2010/02/rdfa/track/issues/105
> Something that came out of the microdata BoF at DrupalCon was the fact that themers are moving fields outside of the entity wrapper. This causes problems for both RDFa and microdata because the item is no longer properly nested. 
> Because microdata offers the itemref, we should be able to enable that pretty seamlessly with microdata. We would be able to have a checkbox on the field settings form that says this field uses an itemref. A metatag with itemref would be placed in the body and would point to the field wrapper. However, I'm not sure whether this is necessary in RDFa since 'about' could be used. I haven't dug into the code yet, so I'm not sure whether an itemref in RDFa would make this easier or take the same effort.
> -Lin
> -- 
> Lin Clark
> DERI, NUI Galway
> lin-clark.com
> twitter.com/linclark

Ivan Herman, W3C Semantic Web Activity Lead
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Received on Thursday, 25 August 2011 15:19:43 UTC

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