ACTION-240: Read thread on RDFa, CURIEs and profile and summarize http://lists.w3.org/Archives/Public/www-tag/2009Feb/0295.html

Read thread on RDFa, CURIEs and profile and summarize http://lists.w3.org/Archives/Public/www-tag/2009Feb/0295.html

State:
closed
Person:
John Kemp
Due on:
March 21, 2009
Created on:
March 5, 2009
Associated Issue:
RDFinXHTML-35
Related emails:
  1. Draft minutes of TAG F2F of 7-9 June 2010 (from nrm@arcanedomain.com on 2010-06-16)
  2. Minutes of TAG telcon 2009-05-28 (from ht@inf.ed.ac.uk (Henry S. Thompson) on 2009-05-29)
  3. Re: ISSUE-35 RDFinXHTML-35 (also ACTION-240) (from ian@hixie.ch on 2009-04-21)
  4. Re: ISSUE-35 RDFinXHTML-35 (also ACTION-240) (from hsivonen@iki.fi on 2009-04-21)
  5. Re: ISSUE-35 RDFinXHTML-35 (also ACTION-240) (from hhalpin@ibiblio.org on 2009-04-21)
  6. Re: ISSUE-35 RDFinXHTML-35 (also ACTION-240) (from hsivonen@iki.fi on 2009-04-21)
  7. Re: TAG telcon of 2009-04-09: Draft minutes (from noah_mendelsohn@us.ibm.com on 2009-04-14)
  8. Re: TAG telcon of 2009-04-09: Draft minutes (from noah_mendelsohn@us.ibm.com on 2009-04-13)
  9. Re: TAG telcon of 2009-04-09: Draft minutes (from jar@creativecommons.org on 2009-04-13)
  10. Re: TAG telcon of 2009-04-09: Draft minutes (from noah_mendelsohn@us.ibm.com on 2009-04-13)
  11. ISSUE-35 RDFinXHTML-35 (also ACTION-240) (from julian.reschke@gmx.de on 2009-04-04)
  12. Approved minutes of the TAG F2F of 3-5 March 2009 (from noah_mendelsohn@us.ibm.com on 2009-04-02)

Related notes:

CC+ spec. allows:

<a xmlns:cc="http://creativecommons.org/ns#" rel="cc:morePermissions"
href="http://somecompany.com/revenue_sharing_agreement">somecompany.com</a>

Which is (roughly) allowed by:

RDFa in XHTML: http://www.w3.org/TR/rdfa-syntax/#relValues (text is slightly above this anchor)

BUT:

XHTML itself allows only tokens in @rel values: http://www.w3.org/TR/2008/REC-xhtml-modularization-20081008/abstraction.html#dt_LinkTypes but says it will "one day" allow QNames

(all well-summarized in http://lists.w3.org/Archives/Public/www-tag/2009Feb/0270.html by mnot)

Issues:

i) Link draft (http://tools.ietf.org/id/draft-nottingham-http-link-header-04.txt) doesn't cover the CURIE case at all (offers URIs and tokens only - with IANA registry URL being used to "qualify" tokens.

ii) XHTML spec. does not itself provide the extension point assumed by RDFa in XHTML

iii) CC spec. doesn't use the HTML4-provided 'profile' extension mechanism for @rel (ie. uFormats - http://microformats.org/wiki/rel-faq) so can't "properly" be delivered in text/html and likely isn't compatible with HTML5 either.

So:

=> What really, do we (TAG) think about CURIES - there seems a large amount of consensus on simple tokens (+ WKL for registry) and "complete" URIs, but not much around QName/CURIE solution where ns is described "separately" from identifier value itself.
=> status of the Link draft (ie. should QNames be allowed there - answer mnot's question?)
=> discrepancy between XHTML doc. and RDFa in XHTML

Possible actions:

Ask XHTML group what their plans are to use either a URI or a CURIE in @REL
Recommend something to mnot as a result of the above discussion
Document something general about use of CURIEs

John Kemp, 1 Apr 2009, 17:32:30

Also relates to http://www.w3.org/2001/tag/doc/selfDescribingDocuments.html

John Kemp, 1 Apr 2009, 18:03:11

Display change log.


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