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Re: LANG: UML as reference point (was: LANG: frame paradigm)

From: Guus Schreiber <schreiber@swi.psy.uva.nl>
Date: Wed, 27 Mar 2002 12:25:52 +0100
Message-ID: <3CA1AC40.8BE9A584@swi.psy.uva.nl>
To: Frank van Harmelen <Frank.van.Harmelen@cs.vu.nl>
CC: www-webont-wg@w3.org
[Sorry for previous message, hit the send button instead of the quate]

Frank van Harmelen wrote:
> - cardinality constraints for attributes and relations
>    in OWL Light for n=1
>    only in Full OWL for arbitrary n

In UML cardinalities are defined for relations as a WHOLE, e.g. a
marriage is a relation males and females (not true in The Netherlands,
by the way), BOTH with a cardinaltiy of 0-1 (assuming we are modelling
the situation at one point in time). 
In Full OWL mainly one side of the relation and its associated
cardinality is modelled In OWL Lite it is more balanced (Single-valued +
UnAmbiguousProperty). 

Guus



-- 
A. Th. Schreiber, SWI, University of Amsterdam, Roetersstraat 15
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Fax: +31 20 525 6896; E-mail: schreiber@swi.psy.uva.nl
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Received on Wednesday, 27 March 2002 06:23:15 GMT

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