W3C

RDFa Task Force

18 Dec 2008

Agenda

See also: IRC log, previous 2008-12-04

Attendees

Present
Shane McCarron, Ben Adida, Mark Birbeck
Regrets
Chair
Ben
Scribe
Ben

Contents


bringing Mark up to speed on the @prefix discussion from last week

scribe: no need to confuse things with prefix="=u1"

Mark: agree on this need not to confuse things with prefix="=u1"
... agree on concept of prefix="p1=u1 p2=u2", but may argue about specific attribute name, a bit uncomfortable with = inside attr

Ben: colon instead?

Shane: hah!
... don't know that anyone's had this particular assignment problem before.
... XSLT?

Mark: they don't use "="
... schemaLocation? space-separated values
... haven't finished the "bundle idea" writeup. Not until new year.

<markbirbeck> <html

<markbirbeck> xmlns:Agent="http://purl.org/dc/terms/Agent"

<markbirbeck> xmlns:vcard="http://xmlns.com/foaf/0.1/Person"

<markbirbeck> xmlns:title="http://xmlns.com/foaf/0.1/title"

<markbirbeck> xmlns:fn="http://xmlns.com/foaf/0.1/name"

<markbirbeck> xmlns:url="http://xmlns.com/foaf/0.1/homepage"

<markbirbeck> >

<markbirbeck> <div

<markbirbeck> about="http://www.ivan-herman.net/me"

<markbirbeck> typeof="vcard Agent"

<markbirbeck> >

<markbirbeck> <h1>

<markbirbeck> <span property="title">Dr</span>

<markbirbeck> <span property="fn">Ivan Herman</span>

<markbirbeck> </h1>

<markbirbeck> <a rel="url" href="http://www.w3.org/People/Ivan/"

<markbirbeck> >Ivan Herman's homepage</a>

<markbirbeck> </div>

<markbirbeck> </html>

Ben: talked last time about using RDF to map tokens to full URLs

Mark: yes, see example above
... critics will say that this looks too complicated.
... so take xmlns declarations out into different document.

Ben: worried about how existing RDFa might generate new triples later.

Mark: don't have a problem with a different syntax, as long as we have this tokenization approach.
... could be a feature of only @prefix or @token

Shane: is there a follow-your-nose story here?

Mark: still working on that.
... trying to make it as close to microformats as possible, but they're not completely consistent.
... trying to leverage existing microformat work + XDMP

Shane: description of a way to do this with extended XMDP mechanism
... on wiki

Mark: would be good to have a full follow your nose

Ben: I like the idea that a single attribute would provide both the ability to define prefixes without xmlns *and* the new token feature for bundles of terms

<markbirbeck> a:b a x:y .

Mark: if you know the context of something, then why bother with a:b.
... letter a is fine if you've got context.
... it's good to move away from the qname world to a token-mapping world.
... maybe a good reason to call it @token rather than @prefix.

email issues

recursion when datatype is xmlliteral

CONSENSUS: we agree that when datatype is plain, recursion continues, when datatype is xmlliteral, recursion stops.

@about on head

problematic example:

<html about="#foo">

<head> <link rel=...></head>

</html>

<ShaneM> http://www.w3.org/TR/rdfa-syntax/#sec_5.5.

<markbirbeck> "If no URI is provided by a resource attribute, then the first match from the following rules will apply:

<markbirbeck> if the element is the head or body element then act as if there is an empty @about present, and process it according to the rule for @about, above;"

<markbirbeck> In 5.5

<markbirbeck> step 4

<markbirbeck> <html about="http://benadida.net/">

<markbirbeck> http://a.b.com#xyz

<markbirbeck> http://a.b.com

<markbirbeck> about=""

<ShaneM> absolute-URI = scheme ":" hier-part [ "?" query ]

ACTION: Mark to review reasoning on setting explicit about="" on HEAD and BODY [recorded in http://www.w3.org/2008/12/18-rdfa-irc]

ACTION: [PENDING] Ben to add public-rdfa examples to wiki and think of slightly improved top-level organization [recorded in http://www.w3.org/2008/11/06-rdfa-minutes.html#action11]

ACTION: [PENDING] Ben to put up information on "how to write RDFa" with screencast possibly and instructions on bookmarklet. [recorded in http://www.w3.org/2008/11/06-rdfa-minutes.html#action12]

ACTION: [PENDING] Jeremy to demonstrate GRDDL with XHTML/RDFa once the NS URI is set up. [recorded in http://www.w3.org/2008/09/11-rdfa-minutes.html#action03]

ACTION: [PENDING] Manu talk with Jamie McCarthy about an AskSlashdot piece [recorded in http://www.w3.org/2008/09/11-rdfa-minutes.html#action04]

ACTION: [PENDING] Manu to write summary for Semantic Web Use Cases for Ivan. [recorded in http://www.w3.org/2008/09/11-rdfa-minutes.html#action09]

ACTION: [PENDING] Manu write the perl code for Slashdot. [recorded in http://www.w3.org/2008/09/11-rdfa-minutes.html#action11]

ACTION: [PENDING] Mark create base wizard suitable for cloning [recorded in http://www.w3.org/2008/09/11-rdfa-minutes.html#action12]

ACTION: [PENDING] Mark to send Ben ubiquity related wizard stuff [recorded in http://www.w3.org/2008/11/20-rdfa-minutes.html#action11]

ACTION: [PENDING] Mark write foaf examples for wiki [recorded in http://www.w3.org/2008/09/11-rdfa-minutes.html#action13]

ACTION: [PENDING] Michael to create 'RDFa for uF users' on RDFa Wiki [recorded in http://www.w3.org/2008/09/11-rdfa-minutes.html#action14]

ACTION: [PENDING] Ralph think about RSS+RDFa [recorded in http://www.w3.org/2008/09/11-rdfa-minutes.html#action15]

Summary of Action Items

[NEW] ACTION: Mark to review reasoning on setting explicit about="" on HEAD and BODY [recorded in http://www.w3.org/2008/12/18-rdfa-irc]

[PENDING] ACTION: Ben to add public-rdfa examples to wiki and think of slightly improved top-level organization [recorded in http://www.w3.org/2008/11/06-rdfa-minutes.html#action11]
[PENDING] ACTION: Ben to put up information on "how to write RDFa" with screencast possibly and instructions on bookmarklet. [recorded in http://www.w3.org/2008/11/06-rdfa-minutes.html#action12]
[PENDING] ACTION: Jeremy to demonstrate GRDDL with XHTML/RDFa once the NS URI is set up. [recorded in http://www.w3.org/2008/09/11-rdfa-minutes.html#action03]
[PENDING] ACTION: Manu talk with Jamie McCarthy about an AskSlashdot piece [recorded in http://www.w3.org/2008/09/11-rdfa-minutes.html#action04]
[PENDING] ACTION: Manu to write summary for Semantic Web Use Cases for Ivan. [recorded in http://www.w3.org/2008/09/11-rdfa-minutes.html#action09]
[PENDING] ACTION: Manu write the perl code for Slashdot. [recorded in http://www.w3.org/2008/09/11-rdfa-minutes.html#action11]
[PENDING] ACTION: Mark create base wizard suitable for cloning [recorded in http://www.w3.org/2008/09/11-rdfa-minutes.html#action12]
[PENDING] ACTION: Mark to send Ben ubiquity related wizard stuff [recorded in http://www.w3.org/2008/11/20-rdfa-minutes.html#action11]
[PENDING] ACTION: Mark write foaf examples for wiki [recorded in http://www.w3.org/2008/09/11-rdfa-minutes.html#action13]
[PENDING] ACTION: Michael to create 'RDFa for uF users' on RDFa Wiki [recorded in http://www.w3.org/2008/09/11-rdfa-minutes.html#action14]
[PENDING] ACTION: Ralph think about RSS+RDFa [recorded in http://www.w3.org/2008/09/11-rdfa-minutes.html#action15]

[End of minutes]

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$Date: 2009/01/08 15:23:04 $