17th-18th June 2002 Meeting of the W3C RDFCore WG

HPLabs Bristol, England

Participants

Dan Brickley	danbri@w3.org	W3C/ILRT
Dave Beckett	dave.beckett@bristol.ac.uk	ILRT, University of Bristol
Jeremy Carroll	jjc@hplb.hpl.hp.com	Hewlett Packard
Mike Dean	mdean@bbn.com	BBN Technologies / Verizon
Jos De Roo	jos.deroo.jd@belgium.agfa.com	AGFA
Jan Grant	jan.grant@bristol.ac.uk	ILRT, University of Bristol
Ramanathan Guha	guha@guha.com	IBM
Pat Hayes	phayes@ai.uwf.edu
Graham Klyne	gk-rdfcore@ninebynine.org	Nine by Nine
Frank Manola	fmanola@mitre.org	The MITRE Corporation
Brian McBride	bwm@hplb.hpl.hp.com	Hewlett Packard
Sergey Melnik	melnik@db.stanford.edu
Patrick Stickler	patrick.stickler@nokia.com	Nokia Research Center

Regrets

Aaron Swartz
Dan Connolly
Ron Daniel
Eric Miller
Steve Petschulat

Absent

Frank Boumphrey
Bill dehOra
Rael Dornfest
Arno Gourdol
Yoshiyki Kitahara
Michael Kopchenov
Kwon, Hyung-Jin
Ora Lassila
Satoshi Nakamura
Pierre G. Richard
Andrew Salop

Objectives

close all open issues
approve all test cases
review datatypes WD
review all postponed issues
plan next steps

Agenda

irc channel: irc.openprojects.net #rdfcore

Monday, 17th June 2002 (all day)

0900	Breakfast
0915	Welcome, introduction, process, plan
0930	Session 2 - resolving open issues
1100	break
1115	Session 2 - resolving open issues
1245	lunch
1330	Session 3 - Dark triples
1500	break
1515	Session 4 - Dark triples
1645	break
1630	Session 5 - Dark Triples

              Dinner

Tuesday, 18th June 2002 (all day)

0900	Breakfast
0915	Plan for the day
0920	Updating RDFSchema
0930	Session 6 - Datatypes
1100	break
1115	Session 7 - Datatypes
1245	lunch
1330	Session 8 - logistics - scribe - hotel - tomorrow - Datatypes actions - Graph Syntax - rdfms-assertion
1500	break
1515	Session 9 - lBase
1645	break
1630	Session 10 - document structure/plans - Reviewing postponed issues/feedback on closed issues

Actions

log 2002-06-17#1 danbri Update RDFS spec to reflect resolution of rdfms-seq-representation
log 2002-06-17#2 danbri Update the FAQ to reflect the resolution of faq-html-compliance
log 2002-06-17#3 daveB Update the syntax spec to reflect the resolution of faq-html-compliance
log 2002-06-17#4 patH Update the model theory to specify that rdfs:isDefinedBy is an rdfs:subPropertyOf rdfs:seeAlso.
log 2002-06-17#5 danbri Update the schema spec to reflect the resolution of rdfs-isDefinedBy.
log 2002-06-17#6 danbri Add to the schema document a comment clarifying the relationship between the idea that there is exactly one namespace or schema associated with a property and the rdfs:isDefinedBy property.
log 2002-06-17#7 danbri Update the schema spec to account for editorial issues listed under rdfs-editorial.
log 2002-06-17#8 guha define the dark/light function for URIREFs
log 2002-06-17#9 patH update the model theory to make statements with dark properties have no semantics
log 2002-06-17#10 guha consider impact of dark triples on test cases
log 2002-06-17#11 danbri propose a class for dark properties
log 2002-06-17#12 patH propose a paragraph on dark triples for the primer
log 2002-06-17#13 daveB ensure that the description of the graph syntax adequately describes darkness
log 2002-06-18#1 danbri republish the current rdf schema to the current rdf schema uri
log 2002-06-18#2 bwm solicit input from the community on the datatyping issue
log 2002-06-18#3 daveB Fold Jeremy's graph syntax text into the syntax document
log 2002-06-18#4 graham prepare text on rdf-assertion for the primer
log 2002-06-18#5 bwm ensure a version of the Cannes statement on rdf-assertion goes into normative document
log 2002-06-18#6 danbri work with PatH and Guha on getting Lbase published as a w3c note.
log 2002-06-18#7 graham prepare outline of new 'model' document
log 2002-06-18#8 bwm propose RDFCore specific document style guidelines
log 2002-06-18#9 bwm consider whether a conformance statement is needed
log 2002-06-18#10 bwm start dicussion of CR exit criteria
log 2002-06-18#11 bwm consider what the current version link of M&S should point to
log 2002-06-18#12 PatH evaluate effect on the proposed form on literals on the model theory document

Decisions

log DaveB's proposal for issue faq-html-compliance was approved and this issue closed
log The WG agreed the following resolution of rdfs-isDefinedBy-semantics and closed this issue:

This property indicates a resource which contains information about the subject. Often, this property is used to indicate the source of the subject uriref, where its owner specifies its intended meaning. The subject node of this property can be any uriref, and the value may be any document or resource; the usage is not restricted to a particular form or schema
log The WG agreed to drop the requirement from M&S that "In RDF, each predicate used in a statement must be identified with exactly one namespace, or schema." because there is no concept of a namespace or schema in the RDF model.
log The WG agreed to modify the exisiting RDF and RDFS namespaces rather than create new ones and seek implementor feedback on this decision. The WG agreed this closes issue rdf-namespace-change.
log The WG agreed to defer schema document editorial issues to the editor and close rdfs-editorial.
log The WG agreed to define a computable function on URIREFs which will return one of two values, light or dark. A statement with a property whose URIREF is mapped to dark by this function is invisible to the model theory; it has no semantics. The WG agreed to postpone issue rdf-contexts to a future WG.
log The WG decided to send a short email to www-rdf-interest and others in the RDF community soliciting input on the tidy/untidy decision.
log The WG decided that the RDF graph syntax does not allow isolated nodes in the graph.
log The WG approved Jeremy's text on character normalization:

Jeremy proposes to allow any XML literal in well-formed graph, and note that interperability problems may result if not using XML normalization rules
log The WG decided that a description of RDF(S) semantics in Lbase should be added as a non-normative appendix to the model theory document (provided it is ready in time) which should be renamed RDF Formal Semantics (or similar). Lbase will be published as a w3c note.
log The WG decided to consider producing a new document to describe the RDF graph, possibly called "Resource Description Framework". This will include description of the graph synax, what it means to assert, character normalization and possibly some other material from the primer. Graham and Jeremy to be editors.
log The WG decided that bwm will be "series editor" for the WG documents.
log The WG decided to aim for last call on 26th Aug 2002.

Minutes

The decisions and actions lists above and the irc logs [day1, day2] constitute the minutes of the meeting.

IRC Logs and other Notes

IRC Log for 17th June 2002

IRC Log for 18th June 2002

Venue

Hewlett Packard Laboratories
Filton Road
Stoke Gifford
Bristol
United Kingdon
BS34 8QZ

Local Contact: Julie Lanfear (xyz-jl@hplb.hpl.hp.com - drop the "xyz-") +44 117 312 8469

Note: A very nice map of the general area is also availiable.

Hotel

Holiday Inn
Filton Road
Hambrook
Bristol
BS16 1QX
UNITED KINGDOM

Readings

None required.

Pictures

Brian McBride <brian_mcbride@hp.com> $Id: Overview.html,v 1.20 2002/03/11 12:24:29 bmcbride Exp $