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Meeting minutes, 2009-10-15

From: Ivan Herman <ivan@w3.org>
Date: Fri, 16 Oct 2009 09:33:01 +0200
Message-ID: <4AD821AD.7050504@w3.org>
To: W3C RDFa task force <public-rdf-in-xhtml-tf@w3.org>
Minutes are here:

http://www.w3.org/2009/10/15-rdfa-minutes

if you are lazy to click, see below. Thanks Manu

Cheers

Ivan

--------------------------

   [1]W3C

      [1] http://www.w3.org/

                        RDF in XHTML Task Force

15 Oct 2009

   [2]Agenda

      [2]
http://lists.w3.org/Archives/Public/public-rdf-in-xhtml-tf/2009Oct/0020.html

   Previous: [3]http://www.w3.org/2009/10/08-rdfa-minutes.html

      [3] http://www.w3.org/2009/10/08-rdfa-minutes.html

   See also: [4]IRC log

      [4] http://www.w3.org/2009/10/15-rdfa-irc

Attendees

   Present
          Manu Sporny, Shane McCarron, Ivan Herman, Mark Birbeck

   Regrets
          Steven Pemberton, Ben Adida

   Chair
          Manu Sporny

   Scribe
          Manu Sporny

Contents

     * [5]Topics
         1. [6]Action Items
         2. [7]RDFa Updates
         3. [8]Discuss and approve Shane's errata text
     * [9]Summary of Action Items
     _________________________________________________________

Action Items

   <scribe> ACTION: ShaneM to craft errata about case insensitive
   reserved words. [recorded in
   [10]http://www.w3.org/2009/10/08-rdfa-minutes.html#action03] [DONE]

     [10] http://www.w3.org/2009/10/08-rdfa-minutes.html#action03

   <scribe> ACTION: ShaneM to craft errata text about canonical
   XMLLiterals [recorded in
   [11]http://www.w3.org/2009/10/08-rdfa-minutes.html#action02] [DONE]

     [11] http://www.w3.org/2009/10/08-rdfa-minutes.html#action02

   <scribe> ACTION: Ben to update JS xmlns getter code on implementors'
   guide for xhtml mime type support [recorded in
   [12]http://www.w3.org/2009/09/17-rdfa-minutes.html#action02]
   [CONTINUES]

     [12] http://www.w3.org/2009/09/17-rdfa-minutes.html#action02

   <manu> scribenick: manu

   Ivan: When does HTML+RDFa get published?

   Manu: Today at some point...

RDFa Updates

   Manu: Any updates from Mark?

   Ivan: We have a book chapter on RDFa that we wrote.
   ... There is a book that Handler and Fentel and Dom?? which is
   published by Stringer
   ... Handbook for the Semantic Web
   ... Collects usual technologies and presents them.
   ... Still being heavily edited, published sometime late 2009

   Manu: HTML+RDFa being published later today
   ... @version and @profile are being fought in HTML WG

   Ivan: @version and @profile are not mandatory

   Manu: Right, but they're important for the default generation of
   XMLLiterals
   ... We probably don't want to do it in RDFa 1.1

   Ivan: That would be an incompatible change on RDFa 1.0

   Shane: If there is no versioning mechanism, then we can't make the
   change.

   Manu: @profile was obsoleted in HTML5, so that creates an issue for
   us
   ... So we have an HTML5 EPB spec for addressing the @version and
   @profile issue.

   Ivan: So we would be forced to not make backwards-incompatible
   changes.
   ... I also don't like that by default new lines and other formatting
   characters are saved.
   ... What about the xmlns: issue?

   Manu: Microsoft seems to be backing it... but no proposal yet.

Discuss and approve Shane's errata text

   Manu:Reserved word values and case-sensitivity

   [13]http://lists.w3.org/Archives/Public/public-rdf-in-xhtml-tf/2009O
   ct/0010.html

     [13]
http://lists.w3.org/Archives/Public/public-rdf-in-xhtml-tf/2009Oct/0010.html

   Shane: Wait... new feedback from Philip Taylor
   ... on XMLLiteral issue.

   Manu: So, we might need to defer talking about the XMLLiteral issue
   based on Philips feedback

   Ivan: Ivan is right, it should be Exclusive Canonical XML if we are
   going to do this
   ... Yes, it's a mess right now, so I'll try to explain clearly.
   ... It should be Exclusive Canonical XML if we are going to require
   this.
   ... in my understanding, if RDFa Processors serialize the triples it
   will depend on which serialization they use
   ... if they serialize into TURTLE, they have to use Exclusive XML
   Canonicalization.
   ... if they serialize to RDF/XML, they don't have to.
   ... we have to be careful in the examples and the primer, that they
   should be in Exclusive Canonical XML.
   ... there are some tests today that are more permissive than they
   should be.
   ... RDF/XML spec says that XML Literals must produce a canonical
   representation of that.

   Manu: Do you think RDFa should place this in the spec, to ensure
   downstream RDF tools don't have to worry about c14n.

   Ivan: I think it places a burden on implementations that only
   generate RDF/XML?

   Shane: It's necessary because the triples that we generate should be
   identical... if they aren't, it affects triple stores.

   Ivan: I think it's good advice to give, but don't think it should be
   a requirement...

   Manu: It causes a problem when RDFa Processors are used to generate
   RDF/XML which is then sent to SPARQL processors.

   Ivan: I think we need feedback from developers before we make this
   requirement.

   Mark: I agree with both of Ivan's points.
   ... At the very least, I think we should look at what this means for
   HTML+RDFa vs. XHTML+RDFa
   ... So, this might only apply to the XHTML version.
   ... We have to be very careful - because prefixes might not have
   come from xmlns:, they might have come from @token.

   Ivan: having something in the document that is advisory is a good
   idea.

   Manu: Would we feel okay with making this a recommendation, but not
   a requirement?

   Shane: I think it's Philips issue, primarily.

   Ivan: How much work would it require to Canonicalize XML in your
   implementation, Shane?

   Shane: I need to look at the new spec Philip sent out first.

   Manu: Ok, so we just need to change the RDFa Test Suite

   <scribe> ACTION: Shane to re-draft XMLLiteral errata text [recorded
   in [14]http://www.w3.org/2009/10/15-rdfa-minutes.html#action04]

     [14] http://www.w3.org/2009/10/15-rdfa-minutes.html#action04

   <scribe> ACTION: Manu change test suite to use Exclusive Canonical
   XMLLiteral tests [recorded in
   [15]http://www.w3.org/2009/10/15-rdfa-minutes.html#action05]

     [15] http://www.w3.org/2009/10/15-rdfa-minutes.html#action05

   <scribe> ACTION: Manu speak with Andy Seaborne about SPARQL.org
   implementation re: c14n [recorded in
   [16]http://www.w3.org/2009/10/15-rdfa-minutes.html#action06]

     [16] http://www.w3.org/2009/10/15-rdfa-minutes.html#action06

Summary of Action Items

   [NEW] ACTION: Manu change test suite to use Exclusive Canonical
   XMLLiteral tests [recorded in
   [17]http://www.w3.org/2009/10/15-rdfa-minutes.html#action05]
   [NEW] ACTION: Manu speak with Andy Seaborne about SPARQL.org
   implementation re: c14n [recorded in
   [18]http://www.w3.org/2009/10/15-rdfa-minutes.html#action06]
   [NEW] ACTION: Shane to re-draft XMLLiteral errata text [recorded in
   [19]http://www.w3.org/2009/10/15-rdfa-minutes.html#action04]

     [17] http://www.w3.org/2009/10/15-rdfa-minutes.html#action05
     [18] http://www.w3.org/2009/10/15-rdfa-minutes.html#action06
     [19] http://www.w3.org/2009/10/15-rdfa-minutes.html#action04

   [PENDING] ACTION: Ben to update JS xmlns getter code on
   implementors' guide for xhtml mime type support [recorded in
   [20]http://www.w3.org/2009/09/17-rdfa-minutes.html#action02]

     [20] http://www.w3.org/2009/09/17-rdfa-minutes.html#action02

   [DONE] ACTION: ShaneM to craft errata about case insensitive
   reserved words. [recorded in
   [21]http://www.w3.org/2009/10/08-rdfa-minutes.html#action03]
   [DONE] ACTION: ShaneM to craft errata text about canonical
   XMLLiterals [recorded in
   [22]http://www.w3.org/2009/10/08-rdfa-minutes.html#action02]

     [21] http://www.w3.org/2009/10/08-rdfa-minutes.html#action03
     [22] http://www.w3.org/2009/10/08-rdfa-minutes.html#action02

   [End of minutes]
     _________________________________________________________


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-- 

Ivan Herman, W3C Semantic Web Activity Lead
Home: http://www.w3.org/People/Ivan/
mobile: +31-641044153
PGP Key: http://www.ivan-herman.net/pgpkey.html
FOAF: http://www.ivan-herman.net/foaf.rdf


Received on Friday, 16 October 2009 07:33:27 GMT

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