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Re: refining closure text for rdfs-isDefinedBy-semantics

From: Patrick Stickler <patrick.stickler@nokia.com>
Date: Wed, 12 Jun 2002 14:03:07 +0300
To: Patrick Stickler <patrick.stickler@nokia.com>, ext Eric Miller <em@w3.org>, RDF Core <w3c-rdfcore-wg@w3.org>
Message-ID: <B92D051B.1690A%patrick.stickler@nokia.com>

On 2002-06-11 10:29, "ext Patrick Stickler" <patrick.stickler@nokia.com>
wrote:

> 
> On 2002-06-10 19:01, "ext Eric Miller" <em@w3.org> wrote:
> 
>> Now that i'm back online, I see Patrick's suggestion...
>> 
>> On Fri, 2002-06-07 at 11:15, Patrick Stickler wrote:
>> 
>>> My specific recommendations are:
>>> 
>>> 1. Leave the definition of rdfs:isDefinedBy as is, though removing
>>> the incorrect language about namespaces, allowing any instance
>>> of rdf:Resource and multiple statements.
>>> 
>>> 2. Qualify objects of rdfs:isDefinedBy by class, in the case of
>>> RDF/XML instances, by the proposed rdfs:Schema class. This permits
>>> those who want/need to, to be explicit about the nature of the
>>> defining resource.
>>> 
>>> 3. Clearly state that there is no functional relationship between
>>> the URI of a term and the namespace URI used in its RDF/XML
>>> serialization -- that the RDF model is based on URIs, not
>>> qnames, and as such, namespaces have no significance whatsoever.
>> 
>> yep, i believe we're saying similar things.
>> 
>> Patrick, have you taken a crack at this rewording?
> 
> Not yet, but I would be happy to do so prior to Friday's telecon.

Here goes:

<rdfs:Property rdf:about="&rdfs;isDefinedBy">
   <rdfs:subPropertyOf rdf:resource="&rdfs;seeAlso"/>
   <rdfs:domain rdf:resource="&rdf;Resource"/>
   <rdfs:range rdf:resource="&rdf;Resource"/>
   <rdfs:comment> 
       This property indicates a resource which fully or partially
       defines the subject resource. The subject of this property
       can be any instance of rdfs:Resource and may have as its
       value any rdfs:Resource. The most common anticipated usage
       is to relate a vocabulary term to an instance of rdfs:Schema
       containing defining information about that term.
   </rdfs:comment>
</rdfs:Property>

<rdfs:Class rdf:about="&rdfs;Schema">
   <rdfs:comment>
      An RDF/XML instance.
   </rdfs:comment>
</rdf:Class>

(and no, I don't consider the definition of rdfs:Schema to be
 too narrow; folks can still point to N3 instances if they like,
 but an rdfs:Schema is a standard serialization of RDF statements)

Cheers,

Patrick

--
               
Patrick Stickler              Phone: +358 50 483 9453
Senior Research Scientist     Fax:   +358 7180 35409
Nokia Research Center         Email: patrick.stickler@nokia.com
Received on Wednesday, 12 June 2002 06:58:58 EDT

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