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Re: Datatypes, datatype classes, URIs and uniqueness

From: pat hayes <phayes@ai.uwf.edu>
Date: Mon, 9 Dec 2002 18:19:56 -0600
Message-Id: <p05111b31ba1ae389749f@[]>
To: "Patrick Stickler" <patrick.stickler@nokia.com>
Cc: w3c-rdfcore-wg@w3.org

>The MT states:
>"The final condition indicates that RDF uses a datatype uriref in 
>two ways: as a name for the datatype itself, and (when used as a
>class name) to indicate the class containing the elements of the 
>value space of the datatype."
>This sounds like datatype URIs are ambiguous, that they denote two different
>I think that it would be better to say that datatype URIs denote
>the datatype class, the instance of rdfs:Datatype, and that the class
>extension is the value space of the datatype.

that would be clearer. I will rephrase this to make it clear there is 
no ambiguity.


>I.e. the URI denotes just
>one thing, the class, and that class happens to have associated with it
>the semantics which capture the lexical space and L2V mapping.
>Saying the datatype URI means two things, a datatype and the value space
>of the datatype as a class (set) seems to violate the fundamental
>uniqueness principle of URIs.
>Or am I just confused...
>[Patrick Stickler, Nokia/Finland, (+358 40) 801 9690, 

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Received on Monday, 9 December 2002 19:20:23 UTC

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