Re: What is RDF Schema? [proposed closed]

* Peter F. Patel-Schneider <pfps@research.bell-labs.com> [2003-08-01 10:06-0400]
> From: Dan Brickley <danbri@w3.org>
> Subject: Re: What is RDF Schema? [proposed closed]
> Date: Fri, 1 Aug 2003 09:53:16 -0400
> 
> > * Peter F. Patel-Schneider <pfps@research.bell-labs.com> [2003-08-01 09:42-0400]
> > > Looks good.
> > >
> > > I notice however, that the first sentence of Appendix A is incorrect.  The
> > > description is really an RDFS description.  I do not believe that there is
> > > an ``RDF Core vocabulary'' and if there were, this would not be it.
> > 
> > currently we have:
> > "An RDF description of the RDF Core vocabulary is given here in RDF/XML
> > serialization syntax."
> > 
> > I'd accept that "An RDFS description of ..." would be more appropriate.
> > 
> > Then the question of what we're describing. Currently we _do_ describe
> > both the RDF namespaces owned/managed by RDF Core, 
> 
> Sure, but where is ``RDF Core vocabulary'' defined as this vocabulary?  I
> certainly don't see it in RDF Schema.  If it is defined elsewhere, then you
> should point to that definition.  The definition that sprang to my mind was
> of the ``core RDF vocabulary'', from RDF Semantics, which is very different.
> 
> > ie. 
> > http://www.w3.org/2000/01/rdf-schema# but also the older 
> > http://www.w3.org/1999/02/22-rdf-syntax-ns# so our RDF/XML appendix 
> > includes claims such as:
> > 
> > [[
> > <rdfs:Class
> > rdf:about="http://www.w3.org/1999/02/22-rdf-syntax-ns#Property">
> >   <rdfs:isDefinedBy
> >  rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#"/>
> > <rdfs:label>Property</rdfs:label>
> > <rdfs:comment>The class of RDF properties.</rdfs:comment>
> > <rdfs:subClassOf rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
> > </rdfs:Class>
> > ]]
> > 
> > I believe it is useful to present an integrated RDFS description of both 
> > sets of classes and properties, since people can never remember which 
> > lives where, and the rest of the RDFS spec also describes both.
> > 
> > So question is how to describe this in Appendix A. How about this:
> > 
> > "An RDF description of the RDF Core vocabulary is given here in RDF/XML
> > serialization syntax."
> > ->
> > "An RDFS description of the http://www.w3.org/1999/02/22-rdf-syntax-ns#
> > and http://www.w3.org/2000/01/rdf-schema# vocabularies is given here in 
> > RDF/XML syntax."
> > 
> > Kinda ugly, but perhaps less contentious?
> > 
> > Dan
> 
> Why not
> 
> 	An RDFS description of the RDF vocabulary [point to appropriate
> 	place in RDF Semantics] and RDFS vocabulary [point to appropriate
> 	place in RDF Semantics] is given here in RDF/XML syntax.

OK, works for me.

Dan
> 
> 
> peter

Received on Friday, 1 August 2003 10:15:17 UTC