Re: Datatypes and xml:lang

On 2002-02-06 20:45, "ext Pat Hayes" <phayes@ai.uwf.edu> wrote:



>> Additional issue:
>> 
>> I think it is also necessary to clarify the relationship
>> between xml:lang and xsd:lang, as it seems that the latter
>> is the range of the former, but this has never been
>> explicitly defined.
> 
> In the OMG MT,
> aaa rdf:type rdf:Datatype .
> would entail
> aaa rdf:range aaa .
> which may seem odd but is required to allow both subproperty of
> rdf:value and also range/type assignments. And it does make semantic
> sense in the MT.
> 
> So with this convention, I think that using either xml:lang or
> xsd:lang as an RDF datatype will implicitly assume that they are
> treated as identical as far as RDF is concerned.

But they're not identitical. They are related, but not the
same. One is a property which ascribes language context
to some resource. The other is a controlled, enumerated
vocabulary of language codes. These are not the same thing.
If the MT treats them as the same. Then something is wrong.

Patrick


--
               
Patrick Stickler              Phone: +358 50 483 9453
Senior Research Scientist     Fax:   +358 7180 35409
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Received on Wednesday, 6 February 2002 13:53:51 UTC