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Re: LANG: frame paradigm

From: Dan Connolly <connolly@w3.org>
Date: 14 Mar 2002 16:40:16 -0600
To: Guus Schreiber <schreiber@swi.psy.uva.nl>
Cc: Frank van Harmelen <Frank.van.Harmelen@cs.vu.nl>, www-webont-wg@w3.org
Message-Id: <1016145617.5227.647.camel@dirk>
On Thu, 2002-03-14 at 10:46, Guus Schreiber wrote:
> I think we should consider the UML class model also as background
> reference. 

UML is handy in that it's widely understood,
but it's got a lot of closed-world assumptions in it.

e.g. in UML, if you say the Person class
has a gender M/F property and a sibling
property, then somebody else can't
derive a brother property and a sister
property, because the list of properties
in a UML class is sorta closed.

So it's great to compare OWL with UML, but let's
also be careful to contrast it.

-- 
Dan Connolly, W3C http://www.w3.org/People/Connolly/
Received on Thursday, 14 March 2002 17:40:00 GMT

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