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Re: ISSUE-28 (multiple facets): REPORTED: Multiple facet restrictions per data range

From: Boris Motik <boris.motik@comlab.ox.ac.uk>
Date: Wed, 7 Nov 2007 19:54:14 -0000
To: <public-owl-wg@w3.org>
Message-ID: <000801c82177$f9192a60$2711a8c0@wolf>

Hello,

The DatatypeRestriction class from the conceptual specification could easily be extended to allow for multiple facets and
restriction values. More concretely, Figure 5 could be changed to make the association between DatatypeRestriction and Constant of
cardinality 1 : n and to parameterize the association with a facet.

Semantically, such multiple facets would be interpreted conjunctively: the resulting datatype is obtained by restricting dataRange
with ALL facets.

The XML and the RDF syntaxes could easily be extended to reflect this conceptual change.

The main benefit of this change is that it would be much easier to create data ranges. Currently, you need to next descriptions,
which can be cumbersome in practice.

Regards,

	Boris
Received on Wednesday, 7 November 2007 19:55:08 GMT

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