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Re: LANG: number range expressions

From: Jim Hendler <hendler@cs.umd.edu>
Date: Thu, 2 May 2002 19:36:53 -0400
Message-Id: <p05111715b8f77d8eb54e@[]>
To: "Ziv Hellman" <ziv@unicorn.com>, <www-webont-wg@w3.org>
At 8:46 PM +0300 5/2/02, Ziv Hellman wrote:
>I was recently looking through some DAML+OIL documentation and I noticed
>that in order to, for example, constrain the property 'age' of a class
>Adult to being 17 or over, one needs the following syntax.


>If stating of a property that it has values between 3 and 25, or 3.14159
>and 24.996436, requires each time referencing a separate URI -- so in
>full generality there might be an uncountable(!) cardinality of URIs --
>and every time a user wishes to edit a range restriction this again
>requires locating the correct URI or creating one, it seems positively
>mind boggling. And this is only with reference to the simplest of value
>restrictions with respect to ranges -- how extensible would this be to
>more complicated constraints and business-rules?
>Will OWL inherit this type of behaviout from DAML+OIL?

Ziv - might I suggest you write an issue statement and send it to 
Mike Smith - this is exactly the sort of mail that should be 
accompanied by an issue request -- see
for a reminder on how to do this

Professor James Hendler				  hendler@cs.umd.edu
Director, Semantic Web and Agent Technologies	  301-405-2696
Maryland Information and Network Dynamics Lab.	  301-405-6707 (Fax)
AV Williams Building, Univ of Maryland		  College Park, MD 20742
Received on Thursday, 2 May 2002 19:40:53 UTC

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