What is RDF Schema? [proposed closed] from Dan Brickley on 2003-08-01 (www-rdf-comments@w3.org from July to September 2003) (original) (raw)

• 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:labelProperty rdfs:commentThe class of RDF properties. <rdfs:subClassOf rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/> ]]

  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