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Re: What is RDF Schema? [proposed closed]

From: Frank Manola <fmanola@mitre.org>
Date: Fri, 01 Aug 2003 10:29:06 -0400
Message-ID: <3F2A7932.8060201@mitre.org>
To: Dan Brickley <danbri@w3.org>
CC: "Peter F. Patel-Schneider" <pfps@research.bell-labs.com>, www-rdf-comments@w3.org

I believe there may be a problem with the word "core".  It seems to me 
we have an "rdf" vocabulary and an "rdfs" vocabulary, but not an "rdf 
core" vocabulary (think "RDF core vocabulary" has now been expunged from 
Concepts).

--Frank

Dan Brickley wrote:

> * 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, 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
> 
> 
> 


-- 
Frank Manola                   The MITRE Corporation
202 Burlington Road, MS A345   Bedford, MA 01730-1420
mailto:fmanola@mitre.org       voice: 781-271-8147   FAX: 781-271-875
Received on Friday, 1 August 2003 10:05:11 GMT

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