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Re: [RDFa Syntax] @resource and @href

From: Mark Birbeck <mark.birbeck@x-port.net>
Date: Mon, 20 Aug 2007 13:04:21 +0100
Message-ID: <a707f8300708200504qd01fbdbi6693d5a64bcd8af9@mail.gmail.com>
To: "Ivan Herman" <ivan@w3.org>
Cc: "Hausenblas, Michael" <michael.hausenblas@joanneum.at>, "W3C RDFa task force" <public-rdf-in-xhtml-tf@w3.org>, "Shane McCarron" <shane@aptest.com>, "Ben Adida" <ben@adida.net>, "Steven Pemberton" <steven.pemberton@cwi.nl>

I do agree with Ivan, although I'll go with the majority decision if
other people think there is no problem.

I think we should certainly ensure that we 'do the right thing' in the
primer, so that people can see examples of different use-cases or
@resource and @href. But in addition to Ivan's concerns, I'd also like
to add that we might be getting a few too many documents floating
around, and the primer and syntax documents should really be where we
focus our efforts.

On 20/08/07, Ivan Herman <ivan@w3.org> wrote:
> Michael,
>
> with all due respect: I do not think we should go there.
>
> There are huge discussions on what information and non-information
> resources are, whether they are the right names, etc, etc; let us not go
> there. Also: from an RDF perspective, a URI is a URI, regardless of what
> they refer to (ie, informational or non-informational resource), which
> makes it even messier. Finally: no RDFa parser could check this
> requirement...
>
> Yes, I was in favour and I am in favour of using @resource in general,
> but we have agreed to allow for @href everywhere and there is no need to
> reopen that discussion. Having both actually helps the RDFa author to
> fine tune the generated triples; that is as far as we should go in my
> view...
>
> My two pence...
>
> Ivan
>
> Hausenblas, Michael wrote:
> >
> > I had a quick look at the RDFa Syntax [1] document
> > and did not actually find any usage of @resource.
> > (BTW, Shane, I did not find any @resource declarations in
> > the DTDs [2] and [3] - did I miss something?)
> >
> > Further, Ivan recently stated in [4]:
> >
> >  'I was always in favour of @resource, and @href only
> >   in the dedicated place, ie, in <a>:-)'
> >
> > So, to assist people in using @resource and @href 'correctly',
> > I'd like to propose the following addition to the RDFa Syntax.
> >
> > <PROPOSAL>
> >
> > 'As per TAG finding httpRange-14 [5] the value of @href
> >  MUST be an information resource, and the value of @resource
> >  MAY be an information resource. RDFa authors SHALL use a URI
> >  that identifies a non-information resources for the value
> >  of @resource.'
> >
> > </END_OF_PROPOSAL>
> >
> > As an aside: The two RDFa test cases TC 31 [6] and
> > TC 32 [7] already demonstrate this 'good practice':
> >
> > TC 31
> > =====
> >
> >  <p about="#wtw">
> >   The book <b>Weaving the Web</b> (hardcover) has the ISBN
> >   <span rel="dc:identifier"
> >         resource="urn:ISBN:0752820907">0752820907</span>.
> >  </p>
> >
> > TC 32
> > =====
> >
> >  <p about="#wtw">
> >   The book <b>Weaving the Web</b> (hardcover) has the ISBN
> >   <a rel="dc:identifier"
> >      resource="urn:ISBN:0752820907"
> >
> > href="http://www.amazon.com/Weaving-Web-Tim-Berners-Lee/dp/0752820907">0
> > 752820907</a>.
> >  </p>
> >
> > Cheers,
> >       Michael
> >
> > [1] http://www.w3.org/MarkUp/2007/ED-rdfa-syntax-20070812/
> > [2] http://www.w3.org/MarkUp/DTD/xhtml-rdfa-1.dtd
> > [3] http://www.w3.org/MarkUp/DTD/xhtml-hypertext-1.mod
> > [4]
> > http://lists.w3.org/Archives/Public/public-rdf-in-xhtml-tf/2007Aug/0121.
> > html
> > [5] http://www.w3.org/2001/tag/issues.html#httpRange-14
> > [6]
> > http://www.w3.org/2006/07/SWD/RDFa/testsuite/xhtml1-testcases/Test0031
> > [7]
> > http://www.w3.org/2006/07/SWD/RDFa/testsuite/xhtml1-testcases/Test0032
> >
> > ----------------------------------------------------------
> >  Michael Hausenblas, MSc.
> >  Institute of Information Systems & Information Management
> >  JOANNEUM RESEARCH Forschungsgesellschaft mbH
> >  Steyrergasse 17, A-8010 Graz, AUSTRIA
> >
> >  <office>
> >     phone: +43-316-876-1193 (fax:-1191)
> >    e-mail: michael.hausenblas@joanneum.at
> >       web: http://www.joanneum.at/iis/
> >
> >  <private>
> >    mobile: +43-660-7621761
> >       web: http://www.sw-app.org/
> > ----------------------------------------------------------
> >
>
> --
>
> Ivan Herman, W3C Semantic Web Activity Lead
> Home: http://www.w3.org/People/Ivan/
> PGP Key: http://www.ivan-herman.net/pgpkey.html
> FOAF: http://www.ivan-herman.net/foaf.rdf
>
>


-- 
  Mark Birbeck, formsPlayer

  mark.birbeck@formsPlayer.com | +44 (0) 20 7689 9232
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Received on Monday, 20 August 2007 12:04:31 GMT

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