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the versioning issue

From: Ivan Herman <ivan@w3.org>
Date: Thu, 12 Nov 2009 20:05:45 +0100
Message-ID: <4AFC5C89.2040104@w3.org>
To: W3C RDFa task force <public-rdf-in-xhtml-tf@w3.org>
Just to pick up on something Mark said on the call. I do believe he is
right and we may have to have some sort of an agreement on this
versioning issue, even for the @rel/@rev URI cases.

It is indeed true that valid RDFa content will not generate more triples
than up to now with that change. However, erronuous RDFa content will,
and that is not good either. Indeed, a code of the form:


<div xmlns:a="XXXX/" about="a:b" property="a:ww">Bla</div>

will generate

<> <XXXX/ww> "Bla" .

whereas, with the new setup, the triple will be

<XXXX/b> <XXXX/ww> "Bla" .

The reason is that, currently, @about will be ignored due to an illegal
value...

(Yes, I know, Ben will say do not allow for CURIE-s in @about:-)

A clean solution would therefore introduce a version for, say, RDFa 1.1
that takes care of such edge cases...

Ivan



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Ivan Herman, W3C Semantic Web Activity Lead
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Received on Thursday, 12 November 2009 19:06:05 UTC

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