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Comment regarding OWL 2 Structural Specification

From: Hladik, Jan <jan.hladik@sap.com>
Date: Mon, 26 Jan 2009 17:16:17 +0100
Message-ID: <ECD2EF30C1BCB342940197F327CDF8470218D7ED@dewdfe1f.wdf.sap.corp>
To: <public-owl-comments@w3.org>

Hello,

In my opinion, OWL 2 is a great improvement over OWL 1 since it incorporates several expressive means which are relevant for applications.

However, regarding datatypes the restriction to unary relations (facets) seems unnecessary since concrete domains with n-ary relations are state of the art in DL research, and they certainly are useful in practice, since they allow to express, eg, that a car is at least as heavy as its engine.

It would thus be great if datatype relations with a higher arity could be included in the final version.

Best regards,

	Jan Hladik 

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Dr. Jan Hladik
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Received on Monday, 26 January 2009 18:41:44 GMT

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