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Re: ISSUE 5.14 - Ontology versioning

From: Jim Hendler <hendler@cs.umd.edu>
Date: Tue, 10 Sep 2002 11:58:46 -0400
Message-Id: <p05111756b9a3c58422c8@[]>
To: "Peter F. Patel-Schneider" <pfps@research.bell-labs.com>
Cc: mdean@bbn.com, www-webont-wg@w3.org

At 8:39 AM -0400 9/10/02, Peter F. Patel-Schneider wrote:
>From: Jim Hendler <hendler@cs.umd.edu>
>Subject: Re: ISSUE 5.14 - Ontology versioning
>Date: Tue, 10 Sep 2002 07:42:11 -0400
>>  [M]y recollection is that we had discussed this (and some other
>>  ontology features) as being "extra-logical" at the first f2f.
>>  This is reflected in the issue description [1]
>>  >4.4 Extra-logical feature set
>Last time I checked 4.4 and 5.14 were different issues.  I don't see any
>linking in the issues list either.  Has something happened that I wasn't
>aware of?

they do not need to be linked -- however, at the first f2f, there was 
discussion of daml:imports (issue 5.6) being extralogical and also of 
the versioning possibly being so.  Thus, in answer to your question 
about the semantics of owl:ontology, I was simply pointing out my 

******* chair hat off **********

It is my personal opinion that treating 5.6 and 5.14 as extralogical 
would address our requirements and be sufficiently described so as 
not to require treatment within the semantic documents.   I am happy 
with owl:ontology being something defined within the semantics, as 
long as we can insert the extralogical tags (4.4) into the definition 
in a way that is comfortable to that semantics.  I feel it is more 
important to be able to put the various metadata, versioning, and 
descriptive features into the ontology header than it is to have 
owl:ontology be an overly constraining definition.  I also worry that 
being constraining in our definition of the "boundaries" of an 
ontology, we would hurt our various use cases, objectives and 
requirements that involve ontology sharing, mapping, 
interoperability, etc.

********** chair hat back on *********

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)
Univ of Maryland, College Park, MD 20742	  240-731-3822 (Cell)
Received on Tuesday, 10 September 2002 11:58:57 UTC

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