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Re: WOWG: minutes Jul 10 telecon

From: Guus Schreiber <schreiber@cs.vu.nl>
Date: Fri, 11 Jul 2003 12:04:24 +0200
Message-ID: <3F0E8BA8.9050109@cs.vu.nl>
To: Jos De_Roo <jos.deroo@agfa.com>
CC: "Dan Connolly <connolly" <connolly@w3.org>, WebOnt WG <www-webont-wg@w3.org>

Jos De_Roo wrote:
> [...]
>>>22. RDFCore Comments on OWL Reference
>>>ACTION: Frank van Harmelen to respond to one open element (rdfs:Class
>>>vs. owl:Class)
>>WITHDRAWN; transferred to PatH
>>ACTION PatH: draft rationale for rdfs:Class vs. owl:Class situation
>>(less controversial than last time)
> I was joining late and missed the disicussion; my bad
> What I was also trying to say at the end of the telecon
> (but had no chance due to sound prloblems) was that
> I am stuck at the following:
> When D is a consistent OWL Lite/DL document then
> it is not necessarily a consistent OWL Full document
> for example the document
> owl:Thing owl:oneOf _:x.
> _:x rdf:first eg:a.
> _:x rdf:rest _:y.
> _:y rdf:first eg:b.
> _:y rdf:rest rdf:nil.
> seems to be DL consistent but Full inconsistent.

Is it DL consistent?

 From App E of Reference (Sean's rules of thumb for OWL DL):

Don't mess with the vocabulary

The built-in properties and classes should not be redefined. In general 
this means that things in the OWL, RDF or RDFS namespaces should not 
appear as subjects of triples.


> We try to make our assumptions explicit in a "global" sense
> (using URI's, triples, implications and some such)
> and I can't see those for owl:Class and owl:Thing
> (seems to me that everybody could mean it's own local thing)
> --
> Jos De Roo, AGFA http://www.agfa.com/w3c/jdroo/

Free University Amsterdam, Computer Science
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E-mail: schreiber@cs.vu.nl
Home page: http://www.cs.vu.nl/~guus/
Received on Friday, 11 July 2003 06:04:25 UTC

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