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Re: rdfs:Class vs. daml:Class ?

From: Dave Rager <drager@bbn.com>
Date: Fri, 15 Mar 2002 15:43:50 -0500
Message-Id: <5.1.0.14.2.20020315154104.0238bf98@127.0.0.1>
To: www-rdf-logic@w3.org
Here's a working URL for the paper:

http://www.cs.man.ac.uk/~horrocks/Publications/download/2001/rdfsfa.pdf

-Dave

At 12:27 PM 3/15/2002 -0800, David Martin wrote:
>I think some clarification of this question would be helpful to others of 
>us as
>well.  I was eager to read the Pan and Horrocks paper mentioned below, but 
>the URL
>is broken:
>
>Not Found
>The requested URL /jpan/Zhilin/download/Paper/Pan-Horrocks-rdfsfa-2001.pdf 
>was not
>found on this server.
>Apache/1.3.9 Server at imgcs.cs.man.ac.uk Port 80
>
>Can someone please post a working URL for this paper?
>
>Thanks,
>
>David
>
>Steven Gollery wrote:
>
> > Please excuse another naive newby question....
> >
> > In the DAML language definition, it looks like rdfs and rdf are being
> > used as the metamodel: daml:Class, for example, is an instance of
> > rdfs:Class. But if that is the case, I would expect that the Class
> > definitions in a DAML ontology would be instances of daml:Class.
> > Instead, the sample ontologies that I've seen use rdfs:Class either
> > exclusively or (as far as I can tell) interchangeably with daml:Class.
> >
> > I understand from the Pan and Horrocks paper at
> > 
> http://img.cs.man.ac.uk/jpan/Zhilin/download/Paper/Pan-Horrocks-rdfsfa-2001.pdf
> > that there is a layering problem in the RDF/RDF(S) definition that
> > prevents a clean division between successive metamodel levels. Is the
> > relationship between rdfs:Class and daml:Class somehow connected to
> > this?
> >
> > I suppose all I'm really asking is: when would I use rdfs:Class and when
> > would I use daml:Class? And if it doesn't matter, why are there two of
> > them?
> >
> > Thanks for your patience,
> >
> > Steven Gollery
Received on Friday, 15 March 2002 15:45:27 GMT

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