DAML Language Committee Minutes 31 October 2000
This page summarizes the telecon for the DAML
Language Committee held from 1300 to 1400 PST on 31 October 2000.
These minutes were prepared by the chairman,
but have not yet been reviewed by the participants.
- Tim Berners-Lee
- Dan Connolly
- Mike Dean
- Stefan Decker
- Frank van Harmelen
- Pat Hayes
- Jeff Heflin
- Ian Horrocks
- Ora Lassila (first half)
- Deb McGuinness
- Lynn Andrea Stein
Jim Hendler has invited Stefan Decker and Ian Horrocks to
join the committee.
They've accepted, and joined us starting with this telecon.
November 1 is Tom Hash's last day at BBN.
or other specific aliases for DAML Lab requests.
Last Week's Minutes
The chair was late in getting these out.
We'll review them next week.
RDF As the Basis for DAML
Pat Hayes suggested at our last meeting that we inaugurate
our technical discussions by addressing why RDF is being
used as the basis for DAML.
Jim Hendler wasn't at this meeting, so we had only third
party accounts of his early decision to base DAML on RDF.
One goal was to leverage the existing Semantic Web efforts at W3C.
There was some discussion about what "based on RDF" meant:
- RDF and/or RDF Schema?
- RDF Model vs. Syntax
- We are probably more closely wedded to the RDF graph model than
the current XML-based syntax.
have experimented with simplified syntaxes for RDF.
- Ora noted that the RDF Working Group employed an S-expression
based syntax while developing the specification.
- definition and/or implementation
- Will RDF be used to both define and implement the DAML language?
- compatible superset
- Will we be able to use RDF tools with DAML?
Tentative conclusion: We'll continue to use RDF unless there's a compelling
reason not to.
There aren't currently a lot of alternatives on the table.
We will try to focus future technical discussions on specific
Proposals should concisely and precisely
identify a language change or extension,
and may be posted to www-rdf-logic or sent to the committee members.
Public discussion on www-rdf-logic is encouraged.
A primary function of the committee will be to
summarize previous www-rdf-logic discussions, weigh the issues,
and make and publish decisions.
The chair hopes that, at equilibrium,
the committee can focus about 75% of its energy on
technical issues and 25% on process and administrative issues.
Deb McGuinness had distributed a
from Peter Patel-Schneider prior to the meeting.
RESOLVED: The committee should develop a charter.
The chair and others were uncomfortable with Peter's notion
of not tieing the committee to any particular outside group
(DARPA, W3C, Jim Hendler, etc.).
DARPA is paying for most of us,
and the DAML program needs language specification(s)
near-term to accomplish its goals.
Some points on W3C structure:
- Working Groups have deliverables and require a time commitment;
Interest Groups do not
- Interest Groups and Working Groups may or may not be
open to non-members of W3C, depending on how the charter is drawn up
- there is no precedent for W3C "adopting" an outside group
and turning it into an Interest Group or Working Group
There's some tension about whether our processes should be completely open.
Some members are much more used to working in a public fishbowl.
There are also likely tradeoffs between openness and productivity.
It was felt that final decisions on a charter would be largely up to
Jim Hendler, who wasn't present.
Further discussion was tabled until Nov 14 when it was expected that
Jim could participate.
Kelly Barber's raw notes
last week's minutes
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