W3C

SWD WG

10 Feb 2009

Agenda

See also: IRC log, previous 2009-01-27

Attendees

Present
Ralph Swick, Tom Baker, Diego Berrueta, Antoine Isaac, Guus Schreiber, Alistair Miles, Sean Bechhofer, Margherita Sini
Regrets
Chair
Tom
Scribe
Ralph

Contents


Admin

RESOLUTION: accept minutes of 27-Jan telecon

RESOLUTION: next meeting 24 Feb

Tom: today is our 98th WG telecon. closing in on 100 :)

Guus: I'll buy drinks for the 100th

SKOS

ACTION: [DONE] Alistair respond to Felix re: issue-188 [recorded in http://www.w3.org/2009/01/27-swd-minutes.html#action01]

Alistair: editorial suggestion, we accepted and put it in the editor's draft

Tom: CR transition status?

Ralph: I18N Core agreed to send any Last Call comments by 18 Feb
... after that, assuming they don't find any serious flaws, we should be able to proceed
... are we willing to give the editors discretion to make any trivial editorial changes?

Guus: yes, sure

Ralph: I expect that the editors and I can judge whether a change would need formal WG approval

-> 2009-02-07 Comment from Magnus Knuth - proposed response

Antoine: Magnus asked that the recommendation be an informal one
... as that was already the case -- was informal -- that seems to satisfy Magnus
... there was a comment on prefLabel in the RDF version of the onotology that seems to more strongly enforce this recommendation
... I propose to reword this comment following the current language of the Primer
... "It is recommended that no two concepts in the same concept scheme be given the same preferred lexical label for the same language tag"
... I'm ready to send this response if the WG agrees

Alistair: I concur

Sean: fine with me

RESOLUTION: Antoine's proposed response in public-swd-wg/2009Feb/0018.html approved

ACTION: Antoine raise and close an issue for Magnus Knuth's comment [recorded in http://www.w3.org/2009/02/10-swd-minutes.html#action02]

ACTION: Alistair update the RDF file for response to Magnus Knuth's comment [recorded in http://www.w3.org/2009/02/10-swd-minutes.html#action03]

-> issue-157; Last Call Comment: SKOS and OWL 2 analysis

Sean: I think it's an oversight that this issue is still open
... we haven't received a formal response [on behalf of the WG] for this
... we've noted his [personal] agreement with the resolution
... so we can close 157

SKOS Ontology

-> SKOS ontology sanity-check? [Antoine 2009-02-07]

Antoine: this was directly related to Magnus' comment
... should we do a final check of the RDF ontology?

Alistair: it would be good to have as many people as possible to look at the comments and labels in the RDF ontology and compare with the document
... I've done some basic [machine] checks but these don't look at the labels or comments

Antoine: I'll try for the basic ontology, won't get to the -xl ontology

Guus: I'll do the same

SKOS Primer

-> Updated Primer editor's draft [Antoine 2009-02-07]

Antoine: is this update small enough to republish the WD?

Ralph: yeah, sure; because of the delay in the CR publication we haven't actually published the Primer yet so this update will be part of the published version

PROPOSED: Accept primer-20090207 as the next WD

RESOLUTION: Accept primer-20090207 as the next WD

ACTION: [DONE] SKOS Editors drop "However, the use of mapping properties might..." sentence from the primer section 3.1 [recorded in [39]http://www.w3.org/2009/01/27-swd-minutes.html#action10] [recorded in http://www.w3.org/2009/02/10-swd-minutes.html#action04]

SKOS Implementation report

ACTION: [CONTINUES] Sean to report on SKOSED for SKOS implementation report [recorded in http://www.w3.org/2009/01/06-swd-minutes.html#action10]

ACTION: [DONE] Guus discuss with Sean editors for the SKOS implementation report [recorded in http://www.w3.org/2009/01/27-swd-minutes.html#action04]

Guus: problem will be time
... we need an implementation report before we can exit Candidate Recommendation
... if we setup a structure for folks to fill-in it will be easier
... create a list of what we want and ask people to add to that list
... create a table for SKOS Editors and Checkers
... would Sean propose a structure for these tables?
... we could include this in our Call for Implementations

<Antoine> public-swd-wg/2009Jan/0080.html

-> SKOS usage at eCulture/Europeana [Antoine, fwd from Ronald Siebes]

Guus: let's try to have the structure in 2 weeks for people to fill

Guus: for a tool, the differences would be whether the tool handles a particular construct

Sean: extra functions like reading, writing, modifying
... I can add some categories for these
... for an implementation report we'd want each implementation to add a line to the table?
... plus a short paragraph about the implementation?

Guus: yes

Antoine: could re-use some of the text from our call for use cases

Ralph: sure, referring back to our use cases seems reasonable

ACTION: Ralph include in the Call for Implementation prose on "feedback on implementations of SKOS Editors and Checkers" [recorded in http://www.w3.org/2009/02/10-swd-minutes.html#action07]

Sean: yes, we use "checker" rather than "validator"

Guus: we'd like to know which SKOS concepts are supported
... and for SKOS Vocabularies we'd like to know the purpose, a link, and a list of SKOS concepts used
... we could extract the concepts used if the vocabulary is public

Ralph: could put this in the Wiki and let implementors update directly

Sean: we're not expecting hundreds of reports, so may be easier just to supply a list of the data we'd like
... I'm not yet accepting editorship of this report :)

[Guus' action to discuss done]

Guus: we may not need a formal report; could just be links to several tables

Ralph: yes
... an implementation report need not be a formal document

RDFa

ACTION: [CONTINUES] Ben review RDFa Use Cases and propose transition to Group Note [recorded in http://www.w3.org/2008/09/30-swd-minutes.html#action02]

Recipes

ACTION: [CONTINUES] Ralph to review the revised Recipes draft [recorded in http://www.w3.org/2008/12/02-swd-minutes.html#action15]

ACTION: [CONTINUES] Ralph/Diego to work on Wordnet implementation [of Recipes implementations] [recorded in http://www.w3.org/2008/01/22-swd-minutes.html#action20]

RDFa METADATA NOTE

ACTION: [CONTINUES] Ralph post his comments on the editor's draft of the metadata note [recorded in http://www.w3.org/2008/11/25-swd-minutes.html#action03]

OWL documents

ACTION: [DONE] Guus to look at OWL documents for review [recorded in http://www.w3.org/2008/10/21-swd-minutes.html#action10]

-> proposed response to OWL LC documents [Guus 2009-01-28]

Guus: the link [2] should point to OWL Reference
... several of the new OWL2 constructs, particularly property characteristics, are useful for characterizing SKOS
... .another typo; reflexivity should be irreflexitivity
... in my second point I note that the OWL2 documents are not accessible to the typical SKOS user
... this is an editorial comment
... while substantial, it's not a technical point against OWL2
... point 3 is about terminology; to what does "OWL2" refer? Just the DL subset or the whole thing?

<TomB> +1 Guus's comments look good

Guus: I added a fourth point which needs more discussion

Sean: I'm less worried about point 2 from where I sit
... but I don't object to including it in the group's comments

Guus: I could imagine the OWL WG responding that there will be one document that uses an RDF representation
... they wouldn't have to re-do all the documents; it would be sufficient for one document to use RDF
... leave it to them to decide how to remedy this
... I don't think it ought to be a lot of work for them
... internally [in Vrieje] in our group there was consensus about this from folk who were very familiar with RDF

Alistair: I support Guus' comments

Antoine: I support them fully

Guus: my fourth comment ...

-> Re: proposed response to OWL LC documents [Guus 2009-02-29]

Guus: I chatted with Ivan about this
... Ivan suggested I have misinterpreted the OWL documents
... this might be the case, but my misinterpretation could be revealing
... I was worried that OWL2 tools might no longer be required to produce RDF/XML
... these other syntaxes are used in normative sections of the OWL2 documents but apparently that does not mean that the other syntaxes are themselves normative

Sean: is there an explicit statement of what the normative syntax is?

Guus: I can rephrase as a question;
... we would expect RDF/XML to continue to be the normative exchange syntax. It is not completely clear from the documents whether this is the case. Would the OWL WG care to clarify?
... from the documents I am unclear about the status of the other syntaxes
... is this a fair question to ask?

Ralph, Alistair: yes, it's fair

Alistair: it's a valid concern. It would be a problem for me if OWL tools stopped emitting RDF/XML

<Antoine> +1

Guus: we can ask this as a clarification question

Ralph: I think it's reasonable and proper for this WG to ask the OWL WG to be explicit that RDF/XML continues to be a required exchange syntax

Guus: 'a' or 'the'?

Ralph: I'd like 'the' but we can ask them to clarify at least

Diego: I agree that RDF/XML must be required
... we would otherwise introduce interoperability problems
... someone must study the impact of changing the normative syntax

Guus: I could live with a tool that produces other syntaxes if it always produces RDF/XML too

Diego: my problem is not just producers but also tools that consume
... if OWL2 introduces new syntaxes equivalent to RDF/XML then effectively this adds a requirement on implementors

Sean: looking at the OWL2 Conformance and Test Cases document ...
... in Section 2 ...

<aliman> +1 on what guus said, I have no problem with an OWL tool that produces other syntaxes, if it can produce some RDF syntax too

Sean: I see "... successfully parsed using canonical RDF parsing process ..."

<seanb> OWL 2 Web Ontology Language:Conformance and Test Cases

Sean: which to me says that RDF is still in there

<seanb> Section 2

Guus: but the other documents aren't clear as the other syntaxes do appear in normative sections

Sean: so you want a clarification?

Guus: yes, I want a clarification but without putting too much pressure on them
... I will rephrase this as a question
... I'd like to send this response in a day
... I'll send a revise proposal tonight, would like comments from SWD tomorrow, then I'll send the comment to OWL WG on Thursday

Tom: OK

<aliman> antoine i see you've raised issue 189, were you planning to also raise another issue for the comment in the RDF?

ACTION: Guus send draft of revised OWL2 response by end of day Tuesday, for WG to review on Wednesday, then send to OWL WG on Thursday [recorded in http://www.w3.org/2009/02/10-swd-minutes.html#action13]

Guus: I can keep this general; request clarification on status of RDF/XML as a normative exchange syntax

Ralph: I think it is appropriate and useful for this WG to state that RDF/XML is mandatory

Margherita: apologies for being less available; I expect to have more time in 2 weeks

Tom: editorial input [after we publish CR] will be useful

Guus: especially on how FAO uses SKOS; this would be very useful for the implementation report

Margherita: the new application we are building will have SKOS export

<TomB> AGROVOC

Margherita: this is a new maintenance tool; AgroVoc service

<marghe> AGROVOC Concept Server Workbench

Summary of Action Items

[NEW] ACTION: Alistair update the RDF file for response to Magnus Knuth's comment [recorded in http://www.w3.org/2009/02/10-swd-minutes.html#action03]
[NEW] ACTION: Antoine raise and close an issue for Magnus Knuth's comment [recorded in http://www.w3.org/2009/02/10-swd-minutes.html#action02]
[NEW] ACTION: Guus send draft of revised OWL2 response by end of day Tuesday, for WG to review on Wednesday, then send to OWL WG on Thursday [recorded in http://www.w3.org/2009/02/10-swd-minutes.html#action13]
[NEW] ACTION: Ralph include in the Call for Implementation prose on "feedback on implementations of SKOS Editors and Checkers" [recorded in http://www.w3.org/2009/02/10-swd-minutes.html#action07]
 
[PENDING] ACTION: Ben review RDFa Use Cases and propose transition to Group Note [recorded in http://www.w3.org/2008/09/30-swd-minutes.html#action02]
[PENDING] ACTION: Ralph post his comments on the editor's draft of the metadata note [recorded in http://www.w3.org/2008/11/25-swd-minutes.html#action03]
[PENDING] ACTION: Ralph to review the revised Recipes draft [recorded in http://www.w3.org/2008/12/02-swd-minutes.html#action15]
[PENDING] ACTION: Ralph/Diego to work on Wordnet implementation [of Recipes implementations] [recorded in http://www.w3.org/2008/01/22-swd-minutes.html#action20]
[PENDING] ACTION: Sean to report on SKOSED for SKOS implementation report [recorded in http://www.w3.org/2009/01/06-swd-minutes.html#action10]
 
[DONE] ACTION: Alistair respond to Felix re: issue-188 [recorded in http://www.w3.org/2009/01/27-swd-minutes.html#action01]
[DONE] ACTION: Guus to look at OWL documents for review [recorded in http://www.w3.org/2008/10/21-swd-minutes.html#action10]
[DONE] ACTION: Guus discuss with Sean editors for the SKOS implementation report [recorded in http://www.w3.org/2009/01/27-swd-minutes.html#action04]
[DONE] ACTION: SKOS Editors drop "However, the use of mapping properties might..." sentence from the primer section 3.1 [recorded in [39]http://www.w3.org/2009/01/27-swd-minutes.html#action10] [recorded in http://www.w3.org/2009/02/10-swd-minutes.html#action04]
 
[End of minutes]

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$Date: 2009/02/10 20:39:53 $