W3C home > Mailing lists > Public > w3c-rdfcore-wg@w3.org > February 2002

Re: Datatypes and xml:lang

From: Patrick Stickler <patrick.stickler@nokia.com>
Date: Wed, 06 Feb 2002 20:54:58 +0200
To: Pat Hayes <phayes@ai.uwf.edu>
CC: RDF Core <w3c-rdfcore-wg@w3.org>
Message-ID: <B88748A2.DA6E%patrick.stickler@nokia.com>
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
Nokia Research Center         Email: patrick.stickler@nokia.com
Received on Wednesday, 6 February 2002 13:53:51 EST

This archive was generated by hypermail pre-2.1.9 : Wednesday, 3 September 2003 09:45:06 EDT