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

simplified datatyping proposal

From: Pat Hayes <phayes@ai.uwf.edu>
Date: Tue, 19 Feb 2002 22:11:01 -0600
Message-Id: <p0510141bb898d025cd5c@[]>
To: w3c-rdfcore-wg@w3.org
Guys, Ive put up a quick draft of a simplified version of the 
datatyping proposal at


I think this version is simple enough for the DPH. It uses the 
datatyping triple idiom:

Jenny ex:age _:x
_:x xsd:number "15"

as primary, and treats rdfs:dlex as a kind of 'empty case' for when 
you don't know the datatype, and then links rdfs:drange directly to 
that, so you don't need to use rdf:dtype or the doublet form at all 
unless you want to. This keeps everything simpler and also much more 
robust against clashes.

BTW, notice I have NOT said that all datatype properties are 
subproperties of rdfs:dlex. There isn't any need to, and that would 
introduce a lot more potential clashes if we did. Also this way of 
doing  it means that 'local' dtypes always take priority over 'range' 
dtypes, which seems right.

Anyway, for your amusement.


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Received on Wednesday, 20 February 2002 00:40:04 UTC

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