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Re: rdfs:range and datatypes

From: Brian McBride <bwm@hplb.hpl.hp.com>
Date: Wed, 21 Nov 2001 19:46:07 +0000
Message-Id: <5.1.0.14.0.20011121194010.02b7c730@0-mail-1.hpl.hp.com>
To: Mike Dean <mdean@bbn.com>, w3c-rdfcore-wg@w3.org
Hi Mike,

This is a good question, and an opportunity for me to check an assumption.

Within the context of the S proposal, I've been assuming that the value 
spaces of XSD datatypes are resources and we could assign URI's to 
them.  Thus if eg:int denotes the value space xsd:integer, we could define

   <foo:someProperty> <rdfs:range> <eg:int> .

xsd:integer would have a domain constraint:

   <xsd:integer> <rdfs:domain> <eg:int> .

and thus given

   <bar> <foo:someProperty> _:int .
   _:int <xsd:integer> "10" .

we can infer

   _:int <rdf:type> <eg:int> .

by two different routes.

Brian


At 18:31 20/11/2001 -0500, Mike Dean wrote:
>My apologies if this has been answered elsewhere in the
>email discussion.
>
>[1] suggests that only the P and P++ proposals involves the
>use of rdfs:range.  Is this true?  If so, it seems like
>we've missed a major opportunity to capture the intent of
>the ontology developer and make life easier on programmers
>using the ontology (who otherwise must presumably be
>prepared to handle any datatype or instance as the property
>value).
>
>         Mike
>
>[1] http://lists.w3.org/Archives/Public/w3c-rdfcore-wg/2001Nov/0295.html
Received on Wednesday, 21 November 2001 14:45:58 EST

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