W3C

RDF-in-XHTML Task Force

3 Jan 2008

Agenda

See also: IRC log, previous 2007-12-20

Attendees

Present
Manu Sporny, Ralph Swick, Shane McCarron, Ben Adida
Regrets
Michael, Mark, Simone, Steven
Chair
Ben
Scribe
Ralph

Contents


Manu: I think Mark is suggesting that @instanceof does apply to @resource in some cases
... whereas Ben and I think it is simpler if @instanceof never applies to @resource

Shane: I interpret Mark's argument as saying @instanceof applies to the subject

Ben: where Mark splits @rel and @resource, I don't see a use case
... I'm concerned about multiple ways of expressing the same thing unless it enables a new use case

Action Review

ACTION: [DONE] Ben to propose a solution for running tests locally [recorded in http://www.w3.org/2007/12/20-rdfa-minutes.html#action16]

-> "running tests locally" [Ben 2-Jan]

ACTION: [DONE] Ben to update primer to remove Libby's email address [recorded in http://www.w3.org/2007/12/20-rdfa-minutes.html#action06]

Ben: I looked and didn't find it in the Primer

Manu: was a blanket action; it's definitely in the Syntax doc

ACTION: Manu to change Libby's email address to Michael's in all test cases [recorded in http://www.w3.org/2007/12/20-rdfa-minutes.html#action05] [CONTINUES]

Manu: only appears in test 19; I've sent mail to Michael

ACTION: [DONE] Manu to check for BASE test cases [recorded in http://www.w3.org/2007/12/20-rdfa-minutes.html#action15]

Manu: I've proposed two tests, but apparently we previously resolved to not support xml:base (test73). test72 uses @base

ACTION: Shane to update syntax doc to remove Libby's email address (and replace it with Michael's) [recorded in http://www.w3.org/2007/12/20-rdfa-minutes.html#action07] [CONTINUES]

ACTION: Ben followup with Fabien on getting his RDFa GRDDL transform transferred to W3C [recorded in http://www.w3.org/2007/11/15-rdfa-minutes.html#action01] [CONTINUES]

ACTION: Ben to add status of various implementations on rdfa.info [recorded in http://www.w3.org/2007/10/04-rdfa-minutes.html#action06] [CONTINUES]

Ben: Michael has volunteered to work on the implementation report on the wiki
... so rdfa.info implementations report might point to or copy the wiki

ACTION: Ben to respond to comment on follow-your-nose [recorded in http://www.w3.org/2007/12/06-rdfa-minutes.html#action02] [CONTINUES]

Ben: draft under discussion

Shane: Mark wants the resource at the profile URI to be something useful
... I've said this several times too; it's just a matter of getting it done
... he'd also like to see the resource be content-negotiated
... and he suggests we also support the GRDDL alternative of <LINK rel='transform'>

Ben: but GRDDL's XHTML mechanism is @profile

ACTION: Ben to set up a proper scribe schedule [recorded in http://www.w3.org/2007/10/11-rdfa-minutes.html#action01] [CONTINUES]

ACTION: Michael to create "Microformats done right -- unambiguous taxonomies via RDF" on the wiki [recorded in http://www.w3.org/2007/08/23-rdfa-minutes.html#action06] [CONTINUES]

ACTION: Ralph followup with Dublin Core on what's going on with their namespace URI [recorded in http://www.w3.org/2007/12/06-rdfa-minutes.html#action01] [CONTINUES]

[SWDWG] ACTION: Ben to prepare draft implementation report for RDFa (with assistance from Michael) [recorded in http://www.w3.org/2007/10/08-swd-minutes.html#action03]

Ben: I've done a draft implementation report

[SWDWG] ACTION: Ben to update RDFa schedule in wiki http://www.w3.org/2006/07/SWD/wiki/RDFa#RDFa_schedule [recorded in http://www.w3.org/2007/10/08-swd-minutes.html#action04]

Ben: I've updated the schedule

[SWDWG] ACTION: Ben and Michael to address comments by Tom [regarding maintenance of wiki document http://www.w3.org/2006/07/SWD/wiki/RDFa] [recorded in http://www.w3.org/2007/10/08-swd-minutes.html#action05] [CONTINUES]

@src

Ben: defer decision until more folk are present

latest Syntax editors' draft

Manu: I have some feedback, which I'll put in mail
... it's becoming a long document
... looks good at a high level; I need more time to look at the detail
... it says what I thought we'd all agreed on
... outstanding issues; @instanceof applying to @resource, changing email addresses, dpedia examples use p: as namespace prefix which might confuse some readers

Ben: I looked at the editors' draft and think it's coming together nicely. Also have some small comments

test cases

<msporny> http://lists.w3.org/Archives/Public/public-rdf-in-xhtml-tf/2008Jan/0004.html

-- test 71

a triple can be generated even if @instanceof and @about is not specified anywhere in the document.

Manu: @href @rel with nothing else generates a triple

Ben: the test is not wrong but it's different from the Creative Commons recommendation
... so could we add another that uses @rel='license' per the CC recommendation?

Manu: happy to do that once 'license' is in the reserved list

Shane: tell me to add 'license' to the reserved list

<scribe> [DONE]

Ben: does SPARQL require whitespace before '.'?

<msporny> http://lists.w3.org/Archives/Public/public-rdf-in-xhtml-tf/2008Jan/0005.html

RESOLUTION: test 71 accepted, pending confirmation of SPARQL whitespace rules

-- test 72

BASE with relative URIs

Ben: recommend dropping '#' for simplification; it's not necessary here

RESOLUTION: test 72 accepted, removing unnecessary '#'

<msporny> http://rdfa.digitalbazaar.com/rdfa-test-harness/

Manu: we still have some whitespace canonicalization issues
... test 11 fails under some implementations and passes under others
... the current test strips all whitespace in the SPARQL but that's not strictly correct per the XHTML rules
... we could fix this by stripping the whitespace in the HTML

Ralph: the point of this test was not to test whitespace rules, but rather to test XMLliteral

Ben: to test whitespace we could use the XPath whitespace function in the SPARQL

Manu: I'm not sure that it would be correct to create a new test using the XPath function

Ben: it's just a way to write a test that is independent of the parser implementation w.r.t. whitespace preservation

Schedule

-> schedule

Ben: I'd like us to reach agreement to have an editors' draft for the SWD WG to review by their Jan 15 telecon
... that's agressive
... so please get comments to Mark and Shane by this weekend

Ben: the only open issue we're discussing is the @resource thread in email

HTML element

Shane: Ivan observed that the RDFa attributes are not permitted on <HTML>
... should this be permitted?

Manu: in one test case I wanted to say "there's a person, me, at this address"
... e.g. example.org/shane
... is there a way to set the type of a document as a Person?
... can you declare the rdf:type of what you're linking to?

Ben: no way currently
... if you're linking something with a typed relationship, the type of the object might be deducible

<msporny> <a about="#me" rel="foaf:knows" href="http://example.org/shane">shane is here</a>

<msporny> <html instanceof="foaf:Person">...</html>

Ben: we permit @instanceof on <HEAD>

Manu: so if permitted on <HEAD>, why not also on <HTML>

Shane: I don't think there would be any parser ramifications
... the HTML WG has never extended the HTML element except for @lang
... HTML doesn't have @id or @class

Ben: consistency is nice, but let's defer to the HTML WG

Shane: in my opinion it would be find for <HTML> to permit the RDFa attributes as well as @id and @class; let's see what the HTML WG wants to do

[adjourned]

Summary of Action Items

[PENDING] ACTION: Ben to add status of various implementations on rdfa.info [recorded in http://www.w3.org/2007/10/04-rdfa-minutes.html#action06]
[PENDING] ACTION: Ben followup with Fabien on getting his RDFa GRDDL transform transferred to W3C [recorded in http://www.w3.org/2007/11/15-rdfa-minutes.html#action01]
[PENDING] ACTION: Ben to respond to comment on follow-your-nose [recorded in http://www.w3.org/2007/12/06-rdfa-minutes.html#action02]
[PENDING] ACTION: Ben to set up a proper scribe schedule [recorded in http://www.w3.org/2007/10/11-rdfa-minutes.html#action01]
[PENDING] ACTION: Manu to change Libby's email address to Michael's in all test cases [recorded in http://www.w3.org/2007/12/20-rdfa-minutes.html#action05]
[PENDING] ACTION: Michael to create "Microformats done right -- unambiguous taxonomies via RDF" on the wiki [recorded in http://www.w3.org/2007/08/23-rdfa-minutes.html#action06]
[PENDING] ACTION: Ralph followup with Dublin Core on what's going on with their namespace URI [recorded in http://www.w3.org/2007/12/06-rdfa-minutes.html#action01]
[PENDING] ACTION: Shane to update syntax doc to remove Libby's email address (and replace it with Michael's) [recorded in http://www.w3.org/2007/12/20-rdfa-minutes.html#action07]
 
[DONE] ACTION: Ben to propose a solution for running tests locally [recorded in http://www.w3.org/2007/12/20-rdfa-minutes.html#action16]
[DONE] ACTION: Ben to update primer to remove Libby's email address [recorded in http://www.w3.org/2007/12/20-rdfa-minutes.html#action06]
[DONE] ACTION: Manu to check for BASE test cases [recorded in http://www.w3.org/2007/12/20-rdfa-minutes.html#action15]
 
[End of minutes]

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