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Minutes of RDF DAWG telecon Tuesday 2004-12-07 for review

From: Eric Prud'hommeaux <eric@w3.org>
Date: Wed, 8 Dec 2004 23:44:20 -0500
To: public-rdf-dawg@w3.org
Message-ID: <20041209044420.GA14929@unagi.w3.org>

RDF Data Access Working Group
http://www.w3.org/2001/sw/DataAccess/
Tuesday 2004-12-07 14:30-16:03 UTC
log: http://www.w3.org/2004/11/30-dawg-irc

Agenda:
http://lists.w3.org/Archives/Public/public-rdf-dawg/2004OctDec/0412.html

chair: Dan Connolly
scribe: Eric Prud'hommeaux


1. Convene, take roll, review agenda

Attending:
    Eric Prud'hommeaux
    Dan Connolly
    Simon Raboczi
    Tom Adams
    Steve Harris
    Kendall Clark
    Kevin Wilkinson
    Andy Seaborne
    Jos De Roo

Regrets:
    Alberto Reggiori
    Howard Katz
    Pat Hayes
    Hiroyuki Sato
    Dave Beckett (on IRC for a while)
    Farrukh Najmi
    Janne Saarela

Next meeting:
Tuesday 2004-12-14 14:30-16:30 UTC
Scribe: TomA

PROPOSED to accept as a true record of the last meeting:
http://lists.w3.org/Archives/Public/public-rdf-dawg/2004OctDec/0394.html
ACCEPTED without opposition

ACTION: KendallC expose our walking tour data to SPARQL querying
clients
CONTINUED


2. ftf4 2005-01-19/2005-01-20 in Helsinki, Finland

[DanC forwards mail to WG re what to wear in Finland]
12 expected at the f2f.


7. ftf5 in March 2005

DanC showed us the SWIG meeting at the 2005 tech plenary page
http://esw.w3.org/topic/SwigAtTp2005

ACTION EricP: find logistics re F2F5 at tech plenary in Boston March 28 Feb - 4 Mar (2 days). Some WG preference to Mon/Tue of that week.
CONTINUES

Kendall brought up the idea of meeting for 4 days. No audible strong
reactions. DanC can chair for 2 days.


3. Test Cases

ACTION JosD: write email about alternative result format using
DONE http://lists.w3.org/Archives/Public/public-rdf-dawg/2004OctDec/0415.html

This raised a use/mention discussion. No discriminating use cases
found yet. DanBri has URI munging and regexp use cases. Andy proposes
<<uri>> in
http://lists.w3.org/Archives/Public/public-rdf-dawg/2004OctDec/0420.html
DanC will create an issue ala
ISSUE: use/mention issues in regex operators, test result format

ACTION: SteveH is willing to adapt his testing infrastructure to
generate input/output RDF/XML and typed nodes into manifest file
CONTINUED

ACTION EricP: make sure all dawg tests are world-readable now and
going forward

ACTION EricP: come up with a specification for the "non-XML" syntax
(may be turtle)

PROPOSED to accept use cases
  http://www.w3.org/2001/sw/DataAccess/tests/#sparql-query-example-2-1a
  http://www.w3.org/2001/sw/DataAccess/tests/#sparql-query-example-2-2a
  http://www.w3.org/2001/sw/DataAccess/tests/#sparql-query-example-2-3a
  http://www.w3.org/2001/sw/DataAccess/tests/#sparql-query-example-2-4a
RESOLVED with 1 abstention: Kendall Clark and no objections

Simon, DanC raised a scalar constraints issue with "?price < 30" in ex 3
http://www.w3.org/2001/sw/DataAccess/tests/#sparql-query-example-3
SimonR: can you put scalar constraints in the graph?
AndyS: numeric ops allowed in scalar constraints ala "?price + 3 < ?x + ?y"
AndyS: What about    op:lessThan "42"^^xsd:byte    (0verloading)
This also raised issues of casting and round-tripping.

ACTION: EricP to sketch tests around comparators in the graph
constraint

ACTION SimonR: propose test case for scalar constraint with syntax
uniform to graph constraints

XSCH SWBPD task force is addressing XSD data types in RDF.
http://www.w3.org/2001/sw/BestPractices/XSCH/xsch-sw/

DanC, SimonR, TomA and JosD don't like the scalar
constraints syntax.


4. Protocol

[discussing 26 Nov binding
 http://lists.w3.org/Archives/Public/public-rdf-dawg/2004OctDec/0364.html]

A discussion of whether to publish the result format separately
sparked these issues:
  should be RDF-friendly
  schema users want predictable element and attribute names
  vars could be listed at the head
The mood was in favor of a separate result format document.

ACTION: DaveB to write an XML result format

ACTION: AndyS to review Dave's XML result set format

ACTION: SteveH to review Dave's XML result set format

[discussion of simplex protocol document
 http://monkeyfist.com/kendall/sparql-protocol-simplex/]

PROPOSE that simplex be published pending approval from KendallC and TomA and AndyS
RESOLVED with 0 abstentions and 0 objections

ACTION: KendallC to publish "SPARQL Protocol for RDF" pending approval from TomA and AndyS


5. SPARQL SOURCE Issue

c.f.
  http://lists.w3.org/Archives/Public/public-rdf-dawg/2004OctDec/0426.html

ACTION: DaveB update the dawg test repository to record or amend tests
to correspond to the
http://lists.w3.org/Archives/Public/public-rdf-dawg/2004OctDec/0241.html
CONTINUED

ACTION: TomA write email to list about how their customers are using
named graphs
DONE

ACTION: JanneS propose text for hard failure in the protocol draft
CONTINUED

ACTION: DanC suggest formal definitions for SOURCE
CONTINUED


6. SPARQL update, issues

ACTION: PatH to review editors working draft of rq23
DONE
http://lists.w3.org/Archives/Public/public-rdf-dawg/2004OctDec/0419.html

ACTION: AlbertoR owns issue 'DESCRIBE'
DONE

ACTION: DanC owner of issue 'yes or no questions' (pending protocol
doc)
CONTINUED

ACTION: SteveH own (i.e. propose resolution to) disjunction issue
CONTINUED

ACTION: EricP migrate some Algae UnionDisjunciton test cases

[discussion of whether to publish early without PatH's feedback or
later with the feedback]
Mood in favor of publishing later with the feedback.


ADJOURNED at 16:03:29Z
-- 
-eric

office: +1.617.258.5741 NE43-344, MIT, Cambridge, MA 02144 USA
cell:   +1.857.222.5741

(eric@w3.org)
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Received on Thursday, 9 December 2004 04:54:47 GMT

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