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Re: datatypes and MT

From: <Patrick.Stickler@nokia.com>
Date: Mon, 5 Nov 2001 08:39:29 +0200
Message-ID: <2BF0AD29BC31FE46B7887732114404316216A8@trebe003.NOE.Nokia.com>
To: w3c-rdfcore-wg@w3.org

>	<rdf:Description rdf:about="#me">
>	  <shoeSize>
>            <integer decimalRep="10"/>
>	  </shoeSize>
>     </rdf:Description>

The problem with this representation is that if we add
additional qualification to the literal value, e.g.

    <integer decimalRep="10" foo:bar="xyz"/>

then an application that does not understand the specific
semantics of any vocabulary other than RDF and RDFS (such
as a generic tool) does not know which is the actual
value of the property 'shoeSize'... "10" or "xyz" since
insofar as the graph representation is concerned, they
are equally opaque.

IMO, regardless of the final mechanisms employed and the
level of typing or qualification of literals, it should
*always* be possible for a generic application to 
differentiate on the basis of the graph itself, which
"child" of a property node constitutes the value node
and which are simply qualifications of that value.

The above proposal does not, as far as I can see, 
provide for that reliable distinction.

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 Monday, 5 November 2001 01:39:45 EST

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