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Re: RDF-ISSUE-66 (xsd-datatypes): Update XSD datatype map with new XSD 1.1 datatypes [RDF General]

From: David Wood <david@3roundstones.com>
Date: Mon, 13 Jun 2011 14:37:48 -0400
Message-Id: <E6F6388F-E3E3-410D-B6DF-345A07555BAE@3roundstones.com>
To: RDF Working Group WG <public-rdf-wg@w3.org>
Hi Alex,

RDF Concepts normatively references XML Schema Part2: Datatypes Second Edition [1].

3.2.5 Use XML Schema Datatypes

RDF can use values represented according to XML schema datatypes [XMLSCHEMA-2], thus assisting the exchange of information between RDF and other XML applications.

I presume therefore that RDF Concepts should change, too.


[1] http://www.w3.org/TR/xmlschema-2/

On Jun 13, 2011, at 12:28, RDF Working Group Issue Tracker wrote:

> RDF-ISSUE-66 (xsd-datatypes): Update XSD datatype map with new XSD 1.1 datatypes [RDF General]
> http://www.w3.org/2011/rdf-wg/track/issues/66
> Raised by: Alex Hall
> On product: RDF General
> RDF Semantics defines an XSD datatype map, and enumerates the datatypes included in this map. OWL2, SPARQL, and RIF each define their own variations on the XSD datatype map, and some of these include new XSD 1.1 datatypes. We should consider including the new XSD 1.1 datatypes in the XSD datatype map defined in RDF Semantics.
> New datatypes defined in XSD 1.1, and the specs which reference them, are:
> xsd:dateTimeStamp (OWL2, RIF)
> xsd:dayTimeDuration (RIF)
> xsd:yearMonthDuration (RIF)
> xsd:precisionDecimal (none)
> Most discussion of the XSD datatype map in RDF Semantics is in an informative context as an example of D-entailment, but there is some language to the effect that XSD built-in datatypes not in the map SHOULD NOT be used in RDF, which is not consistent with their use in OWL2 and RIF for these new datatypes.
Received on Monday, 13 June 2011 18:38:25 UTC

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