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RDF Web Applications Working Group Teleconference

Minutes of 19 January 2012

Agenda
http://lists.w3.org/Archives/Public/public-rdfa-wg/2012Jan/0024.html
Seen
Ivan Herman, Manu Sporny, Niklas Lindström, Shane McCarron, Stéphane Corlosquet, Ted Thibodeau
Scribe
Ted Thibodeau
IRC Log
Original
Resolutions
  1. Adopt the WWW TAG proposed language on fragment identifiers and place it into RDFa Core 1.1 link
  2. Reject the SPARQL 1.1 Query Language definition of PN_LOCAL and PN_PREFIX for CURIEs in RDFa 1.1 link
  3. Change XML+RDFa such that RDFa attributes are defined in 'no namespace' and XHTML namespace and also caution authors that they must pay attention to XML-based languages where the RDFa attributes and Host Language attributes may overlap. link
Topics
14:36:08 <RRSAgent> logging to http://www.w3.org/2012/01/19-rdfa-irc

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14:36:10 <trackbot> RRSAgent, make logs world

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14:36:12 <trackbot> Zakim, this will be 7332

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14:36:12 <Zakim> ok, trackbot; I see SW_RDFa()10:00AM scheduled to start in 24 minutes

Zakim IRC Bot: ok, trackbot; I see SW_RDFa()10:00AM scheduled to start in 24 minutes

14:36:13 <trackbot> Meeting: RDF Web Applications Working Group Teleconference
14:36:13 <trackbot> Date: 19 January 2012
15:00:42 <Zakim> SW_RDFa()10:00AM has now started

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Zakim IRC Bot: SW_RDFa()10:00AM has now started

15:00:49 <Zakim> +scor

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15:00:52 <Zakim> +OpenLink_Software

Zakim IRC Bot: +OpenLink_Software

15:01:01 <MacTed> Zakim, OpenLink_Software is temporarily me

Ted Thibodeau: Zakim, OpenLink_Software is temporarily me

15:01:01 <Zakim> +MacTed; got it

Zakim IRC Bot: +MacTed; got it

15:01:04 <MacTed> Zakim, mute me

Ted Thibodeau: Zakim, mute me

15:01:04 <Zakim> MacTed should now be muted

Zakim IRC Bot: MacTed should now be muted

15:01:23 <Zakim> + +1.540.961.aaaa

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15:01:27 <Zakim> - +1.540.961.aaaa

Zakim IRC Bot: - +1.540.961.aaaa

15:01:34 <Zakim> +??P25

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15:01:54 <Zakim> +??P27

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15:01:58 <manu1> zakim, I am ??P27

Manu Sporny: zakim, I am ??P27

15:01:58 <Zakim> +manu1; got it

Zakim IRC Bot: +manu1; got it

15:02:07 <niklasl> zakim, I am ??P25

Niklas Lindström: zakim, I am ??P25

15:02:07 <Zakim> +niklasl; got it

Zakim IRC Bot: +niklasl; got it

15:02:20 <manu1> zakim, who is on the call?

Manu Sporny: zakim, who is on the call?

15:02:20 <Zakim> On the phone I see scor, MacTed (muted), niklasl, manu1

Zakim IRC Bot: On the phone I see scor, MacTed (muted), niklasl, manu1

15:02:34 <Zakim> + +1.612.217.aabb

Zakim IRC Bot: + +1.612.217.aabb

15:02:40 <ShaneM> zakim, I am aabb

Shane McCarron: zakim, I am aabb

15:02:40 <Zakim> +ShaneM; got it

Zakim IRC Bot: +ShaneM; got it

15:02:56 <ivan> zakim, dial ivan-voip

Ivan Herman: zakim, dial ivan-voip

15:02:56 <Zakim> ok, ivan; the call is being made

Zakim IRC Bot: ok, ivan; the call is being made

15:02:58 <Zakim> +Ivan

Zakim IRC Bot: +Ivan

15:03:51 <manu1> Agenda: http://lists.w3.org/Archives/Public/public-rdfa-wg/2012Jan/0024.html
15:04:03 <MacTed> Zakim, unmute me

Ted Thibodeau: Zakim, unmute me

15:04:21 <Zakim> MacTed should no longer be muted

Zakim IRC Bot: MacTed should no longer be muted

15:04:25 <MacTed> scribenick: MacTed

(Scribe set to Ted Thibodeau)

15:04:28 <MacTed> scribe: Ted
15:09:06 <MacTed> Agenda review, one change, discuss HTML+RDFa document conformance at end of call

Agenda review, one change, discuss HTML+RDFa document conformance at end of call

15:09:07 <manu1> Topic: ISSUE-84: fragment identifiers

1. ISSUE-84: fragment identifiers

15:09:07 <MacTed> manu1: This issue has been re-opened because the TAG has new language that they'd like to use. Do we want to use the new language as requested by the WWW TAG? http://lists.w3.org/Archives/Public/public-rdfa-wg/2011Dec/0055.html

Manu Sporny: This issue has been re-opened because the TAG has new language that they'd like to use. Do we want to use the new language as requested by the WWW TAG? http://lists.w3.org/Archives/Public/public-rdfa-wg/2011Dec/0055.html

15:09:52 <ShaneM> The spec now says: In some of the examples below we have used IRIs with fragment identifiers that are local to the document containing the RDFa fragment identifiers shown (e.g., 'about="#me"'). This idiom, which is also used in RDF/XML [RDF-SYNTAX-GRAMMAR] and other RDF serializations, gives a simple way to 'mint' new IRIs for entities described by RDFa and therefore contributes considerably to the expressive power of RDFa.

Shane McCarron: The spec now says: In some of the examples below we have used IRIs with fragment identifiers that are local to the document containing the RDFa fragment identifiers shown (e.g., 'about="#me"'). This idiom, which is also used in RDF/XML [RDF-SYNTAX-GRAMMAR] and other RDF serializations, gives a simple way to 'mint' new IRIs for entities described by RDFa and therefore contributes considerably to the expressive power of RDFa.

15:10:12 <MacTed> No concerns about new language.

No concerns about new language.

15:10:12 <manu1> PROPOSAL: Adopt the WWW TAG proposed language on fragment identifiers and place it into RDFa Core 1.1

PROPOSED: Adopt the WWW TAG proposed language on fragment identifiers and place it into RDFa Core 1.1

15:10:14 <manu1> +1

Manu Sporny: +1

15:10:16 <niklasl> +1

Niklas Lindström: +1

15:10:16 <ShaneM> +1

Shane McCarron: +1

15:10:23 <ivan> +1

Ivan Herman: +1

15:10:33 <MacTed> MacTed: +1

Ted Thibodeau: +1

15:10:35 <scor> +1

Stéphane Corlosquet: +1

15:10:37 <ivan> RESOLVED: Adopt the WWW TAG proposed language on fragment identifiers and place it into RDFa Core 1.1

RESOLVED: Adopt the WWW TAG proposed language on fragment identifiers and place it into RDFa Core 1.1

15:10:51 <manu1> Topic: ISSUE-125: Refine CURIE syntax

2. ISSUE-125: Refine CURIE syntax

15:11:04 <manu1> https://www.w3.org/2010/02/rdfa/track/issues/125

Manu Sporny: https://www.w3.org/2010/02/rdfa/track/issues/125

15:12:47 <MacTed> manu: SPARQL & Turtle use a different CURIE definition than current RDFa; request is that RDFa be aligned to the others

Manu Sporny: SPARQL & Turtle use a different CURIE definition than current RDFa; request is that RDFa be aligned to the others

15:13:51 <niklasl> q+

Niklas Lindström: q+

15:14:11 <MacTed> ... concern is that requested revision differs from Turtle and SPARQL by explicitly disallowing http:// (and possibly some other scheme patterns)

... concern is that requested revision differs from Turtle and SPARQL by explicitly disallowing http:// (and possibly some other scheme patterns)

15:14:39 <manu1> ack niklasl

Manu Sporny: ack niklasl

15:15:24 <MacTed> niklasl: not quite clear on what's allowed and not, by these syntaxes...  forward slashes seem to require backslash-escaping

Niklas Lindström: not quite clear on what's allowed and not, by these syntaxes... forward slashes seem to require backslash-escaping

15:15:52 <MacTed> ... Gavin appears to have misinterpreted some docs

... Gavin appears to have misinterpreted some docs

15:17:29 <MacTed> ivan: I sympathize with the goal of same syntax across RDFa, SPARQL, & Turtle; but if request is to put an extra restriction in RDFa, not sure that's needed

Ivan Herman: I sympathize with the goal of same syntax across RDFa, SPARQL, & Turtle; but if request is to put an extra restriction in RDFa, not sure that's needed

15:18:34 <manu1> Here's the definition they'd like us to use: http://www.w3.org/TR/2012/WD-sparql11-query-20120105/#rPN_PREFIX

Manu Sporny: Here's the definition they'd like us to use: http://www.w3.org/TR/2012/WD-sparql11-query-20120105/#rPN_PREFIX

15:18:42 <MacTed> manu: I think this group would agree that 1 syntax for CURIEs across all specs/languages would be good. I'm concerned about ways that the requested definition differs from Turtle and SPARQL.

Manu Sporny: I think this group would agree that 1 syntax for CURIEs across all specs/languages would be good. I'm concerned about ways that the requested definition differs from Turtle and SPARQL.

15:20:26 <scor> does the current RDFa syntax definition for CURIEs allow http:// ?

Stéphane Corlosquet: does the current RDFa syntax definition for CURIEs allow http:// ?

15:21:12 <ShaneM> I am not in favor of making changes to this at this time.

Shane McCarron: I am not in favor of making changes to this at this time.

15:21:14 <niklasl> scor: I'm afraid so

Stéphane Corlosquet: I'm afraid so [ Scribe Assist by Niklas Lindström ]

15:21:23 <MacTed> ivan: sees 2 concerns from Gavin.  1 = discrepancy between RDFa and SPARQL/Turtle CURIE def; 2 = prefix restriction(s)

Ivan Herman: sees 2 concerns from Gavin. 1 = discrepancy between RDFa and SPARQL/Turtle CURIE def; 2 = prefix restriction(s)

15:24:26 <MacTed> (...discussion...)  suggested syntax BNF in http://lists.w3.org/Archives/Public/public-rdfa-wg/2012Jan/0025.html would disallow many currently acceptable CURIEs

(...discussion...) suggested syntax BNF in http://lists.w3.org/Archives/Public/public-rdfa-wg/2012Jan/0025.html would disallow many currently acceptable CURIEs

15:25:41 <ShaneM> this BNF is making my eyes bleed

Shane McCarron: this BNF is making my eyes bleed

15:28:07 <MacTed> (...discussion...)  schema.org extensions via '/' would be invalidated by this syntax... so would dbpedia. That is if someone wanted to do this: schema:Person/Engineer/ElectricalEngineer they couldn't without escaping the slashes like so: schema:Person\/Engineer\/ElectricalEngineer ... people using schema.org are not going to understand why they have to backslash escape that stuff... and they don't have to with RDFa today.

(...discussion...) schema.org extensions via '/' would be invalidated by this syntax... so would dbpedia. That is if someone wanted to do this: schema:Person/Engineer/ElectricalEngineer they couldn't without escaping the slashes like so: schema:Person\/Engineer\/ElectricalEngineer ... people using schema.org are not going to understand why they have to backslash escape that stuff... and they don't have to with RDFa today.

15:29:39 <scor> ivan: it's only for external parties willing to extend these types

Ivan Herman: it's only for external parties willing to extend these types [ Scribe Assist by Stéphane Corlosquet ]

15:29:44 <ivan> http://schema.org/docs/extension.html

Ivan Herman: http://schema.org/docs/extension.html

15:29:47 <scor> not on schema.org itself

Stéphane Corlosquet: not on schema.org itself

15:30:45 <scor> we should bounce the / issue back to Gavin and the RDF WG

Stéphane Corlosquet: we should bounce the / issue back to Gavin and the RDF WG

15:31:03 <scor> re the use of / in DBpedia and schema.org extensions

Stéphane Corlosquet: re the use of / in DBpedia and schema.org extensions

15:31:09 <MacTed> manu: We've now confirmed two real-world use cases requiring unescaped slashes in CURIEs, with third-party extensions of schema.org and dbpedia:/resource/Albert_Einstein - if we limit the syntax, we limit the ability to shorten URIs, and that's the whole purpose of CURIEs. We can't accept a solution that requires characters like /, & and ? to be backslash escaped... it's too restrictive.

Manu Sporny: We've now confirmed two real-world use cases requiring unescaped slashes in CURIEs, with third-party extensions of schema.org and dbpedia:/resource/Albert_Einstein - if we limit the syntax, we limit the ability to shorten URIs, and that's the whole purpose of CURIEs. We can't accept a solution that requires characters like /, & and ? to be backslash escaped... it's too restrictive.

15:31:39 <manu1> PROPOSAL: Accept the SPARQL 1.1 Query Language definition of PN_LOCAL and PN_PREFIX for CURIEs in RDFa 1.1

PROPOSED: Accept the SPARQL 1.1 Query Language definition of PN_LOCAL and PN_PREFIX for CURIEs in RDFa 1.1

15:31:50 <manu1> -1

Manu Sporny: -1

15:31:53 <scor> -1

Stéphane Corlosquet: -1

15:32:03 <ivan> -1

Ivan Herman: -1

15:32:05 <ShaneM> -1

Shane McCarron: -1

15:32:21 <ShaneM> I am a big fan of dbpedia reference

Shane McCarron: I am a big fan of dbpedia reference

15:32:23 <niklasl> +0

Niklas Lindström: +0

15:32:47 <MacTed> Ted: +0

Ted Thibodeau: +0

15:33:00 <manu1> RESOLVED: Reject the SPARQL 1.1 Query Language definition of PN_LOCAL and PN_PREFIX for CURIEs in RDFa 1.1

RESOLVED: Reject the SPARQL 1.1 Query Language definition of PN_LOCAL and PN_PREFIX for CURIEs in RDFa 1.1

15:34:43 <ShaneM> q+ about why this is all a bad idea

Shane McCarron: q+ about why this is all a bad idea

15:35:12 <niklasl> q+

Niklas Lindström: q+

15:35:32 <manu1> ack niklasl

Manu Sporny: ack niklasl

15:35:39 <niklasl> I still have concerns about this, outlined here: http://lists.w3.org/Archives/Public/public-rdfa-wg/2012Jan/0027.html

Niklas Lindström: I still have concerns about this, outlined here: http://lists.w3.org/Archives/Public/public-rdfa-wg/2012Jan/0027.html

15:37:45 <ShaneM> BTW we published the CURIE spec as a note when the XHTML working group shut down: http://www.w3.org/TR/curie/

Shane McCarron: BTW we published the CURIE spec as a note when the XHTML working group shut down: http://www.w3.org/TR/curie/

15:40:40 <MacTed> (...discussion...) colon as separation character is where the trouble lies, but fixing that is an enormous task touching many specs, the discussion would be unending and all to solve a problem that we've never heard anybody complain about. The proposed solution is worse than what we have in RDFa right now.

(...discussion...) colon as separation character is where the trouble lies, but fixing that is an enormous task touching many specs, the discussion would be unending and all to solve a problem that we've never heard anybody complain about. The proposed solution is worse than what we have in RDFa right now.

15:41:32 <ShaneM> I am actually not opposed to preventing a slash as a first character of a reference

Shane McCarron: I am actually not opposed to preventing a slash as a first character of a reference

15:44:39 <manu1> PROPOSAL: Prevent a slash as the first character in the reference part of a CURIE.

PROPOSED: Prevent a slash as the first character in the reference part of a CURIE.

15:42:56 <ivan> 0

Ivan Herman: 0

15:44:41 <manu1> -1

Manu Sporny: -1

15:44:47 <ivan> 0

Ivan Herman: 0

15:45:02 <ivan> q+

Ivan Herman: q+

15:45:16 <MacTed> (...discussion...) past specs allowed what we're considering disallowing... which means we're doing something that is backwards incompatible

(...discussion...) past specs allowed what we're considering disallowing... which means we're doing something that is backwards incompatible

15:45:28 <manu1> ack ivan

Manu Sporny: ack ivan

15:46:02 <MacTed> (...discussion...) current refinement suggestions are further departure from CURIE specs in SPARQL and Turtle, not alignment... if we are to align these specifications, resolving to not allow a slash as the first character in the reference part of a CURIE is a bad way to start the discussion. We should coordinate more on RDF WG on this, but this is not for RDFa 1.1.

(...discussion...) current refinement suggestions are further departure from CURIE specs in SPARQL and Turtle, not alignment... if we are to align these specifications, resolving to not allow a slash as the first character in the reference part of a CURIE is a bad way to start the discussion. We should coordinate more on RDF WG on this, but this is not for RDFa 1.1.

15:47:34 <ShaneM> 0

Shane McCarron: 0

15:47:39 <niklasl> +1

Niklas Lindström: +1

15:47:39 <ivan> -0

Ivan Herman: -0

15:47:55 <MacTed> Ted: +0

Ted Thibodeau: +0

15:48:01 <scor> -0

Stéphane Corlosquet: -0

15:48:55 <MacTed> Manu: We don't have consensus on this, we've discussed all of this before, no new information... let's move on.

Manu Sporny: We don't have consensus on this, we've discussed all of this before, no new information... let's move on.

15:49:59 <manu1> Topic: Use of RDFa in XML-based languages

3. Use of RDFa in XML-based languages

15:50:11 <ivan> http://lists.w3.org/Archives/Public/public-rdfa-wg/2012Jan/0031.html

Ivan Herman: http://lists.w3.org/Archives/Public/public-rdfa-wg/2012Jan/0031.html

15:50:11 <MacTed> manu: Yes, this was my comment. I don't think that we should limit that RDFa attributes in XML documents MUST be in the XHTML namespace... authors are just not going to do that. We should instead say that RDFa attributes can be in the 'no namespace'.

Manu Sporny: Yes, this was my comment. I don't think that we should limit that RDFa attributes in XML documents MUST be in the XHTML namespace... authors are just not going to do that. We should instead say that RDFa attributes can be in the 'no namespace'.

15:54:11 <MacTed> Shane: What about clashes w/ languages that use stuff like @href and @src? Maybe we should allow them in XHTML namespace as well, so attributes can be used in both 'no namespace' and xhtml namespace... processors much check both.

Shane McCarron: What about clashes w/ languages that use stuff like @href and @src? Maybe we should allow them in XHTML namespace as well, so attributes can be used in both 'no namespace' and xhtml namespace... processors much check both.

15:55:16 <MacTed> General agreement on changes, no opposition.

General agreement on changes, no opposition.

15:56:24 <MacTed> Niklas: We should warn authors about conflicts in 'no namespace'.

Niklas Lindström: We should warn authors about conflicts in 'no namespace'.

15:58:59 <manu1> PROPOSAL: Change XML+RDFa such that RDFa attributes are defined in 'no namespace' and XHTML namespace and also caution authors that they must pay attention to XML-based languages where the RDFa attributes and Host Language attributes may overlap.

PROPOSED: Change XML+RDFa such that RDFa attributes are defined in 'no namespace' and XHTML namespace and also caution authors that they must pay attention to XML-based languages where the RDFa attributes and Host Language attributes may overlap.

16:00:16 <ivan> +1

Ivan Herman: +1

16:00:19 <manu1> +1

Manu Sporny: +1

16:00:22 <MacTed> Ted: +1

Ted Thibodeau: +1

16:00:24 <ShaneM> +1

Shane McCarron: +1

16:00:25 <niklasl> +1

Niklas Lindström: +1

16:00:36 <scor> +1

Stéphane Corlosquet: +1

16:00:38 <manu1> RESOLVED: Change XML+RDFa such that RDFa attributes are defined in 'no namespace' and XHTML namespace and also caution authors that they must pay attention to XML-based languages where the RDFa attributes and Host Language attributes may overlap.

RESOLVED: Change XML+RDFa such that RDFa attributes are defined in 'no namespace' and XHTML namespace and also caution authors that they must pay attention to XML-based languages where the RDFa attributes and Host Language attributes may overlap.

16:01:23 <manu1> Topic: @resource in RDFaLite 1.1

4. @resource in RDFaLite 1.1

16:03:53 <MacTed> Ivan: We need to make a decision on whether or not we're going to replace @about with @resource in RDFa Lite 1.1

Ivan Herman: We need to make a decision on whether or not we're going to replace @about with @resource in RDFa Lite 1.1

16:04:53 <MacTed> Manu: To avoid another LC, we should note it clearly in the document that we /may/ do this after LC, so folks should weigh in on it during LC. That'll cover us from having to do another LC.

Manu Sporny: To avoid another LC, we should note it clearly in the document that we /may/ do this after LC, so folks should weigh in on it during LC. That'll cover us from having to do another LC.

16:04:53 <MacTed> Ivan: We need to make this decision eventually.

Ivan Herman: We need to make this decision eventually.

16:06:53 <MacTed> RRSAgent, draft minutes

RRSAgent, draft minutes

16:06:53 <RRSAgent> I have made the request to generate http://www.w3.org/2012/01/19-rdfa-minutes.html MacTed

RRSAgent IRC Bot: I have made the request to generate http://www.w3.org/2012/01/19-rdfa-minutes.html MacTed

16:06:56 <MacTed> RRSAgent, make logs public

RRSAgent, make logs public

16:06:57 <Zakim> -Ivan

Zakim IRC Bot: -Ivan

16:06:59 <Zakim> -manu1

Zakim IRC Bot: -manu1

16:07:04 <MacTed> trackbot, end meeting

trackbot, end meeting

16:07:04 <trackbot> Zakim, list attendees

Trackbot IRC Bot: Zakim, list attendees

16:07:04 <Zakim> As of this point the attendees have been scor, MacTed, +1.540.961.aaaa, manu1, niklasl, +1.612.217.aabb, ShaneM, Ivan

Zakim IRC Bot: As of this point the attendees have been scor, MacTed, +1.540.961.aaaa, manu1, niklasl, +1.612.217.aabb, ShaneM, Ivan

16:07:07 <Zakim> -scor

Zakim IRC Bot: -scor

16:07:07 <trackbot> RRSAgent, please draft minutes

Trackbot IRC Bot: RRSAgent, please draft minutes

16:07:07 <RRSAgent> I have made the request to generate http://www.w3.org/2012/01/19-rdfa-minutes.html trackbot

RRSAgent IRC Bot: I have made the request to generate http://www.w3.org/2012/01/19-rdfa-minutes.html trackbot

16:07:08 <trackbot> RRSAgent, bye

Trackbot IRC Bot: RRSAgent, bye

16:07:08 <RRSAgent> I see no action items

RRSAgent IRC Bot: I see no action items

16:07:09 <Zakim> -ShaneM

Zakim IRC Bot: -ShaneM

16:07:10 <Zakim> -niklasl

Zakim IRC Bot: -niklasl



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