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Re: ISSUE 5.14 - Ontology versioning

From: Jim Hendler <hendler@cs.umd.edu>
Date: Tue, 10 Sep 2002 07:42:11 -0400
Message-Id: <p05111749b9a388f05f83@[]>
To: "Peter F. Patel-Schneider" <pfps@research.bell-labs.com>, mdean@bbn.com
Cc: www-webont-wg@w3.org

At 11:25 PM -0400 9/9/02, Peter F. Patel-Schneider wrote:
>From: Mike Dean <mdean@bbn.com>
>Subject: Re: ISSUE 5.14 - Ontology versioning
>Date: Mon, 09 Sep 2002 21:23:21 -0400
>>  > Sure, but what is owl:Ontology?
>>  It exists primarily as a
>>  placeholder for metadata about the ontology.
>>	Mike
>Ahh.  But how can this be turned into something in the OWL semantics,
>assuming that this is something that is desirable?

my 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
>DAML+OIL has a limited ability to add features to ontologies and 
>assertions. Our requirements for "tagging" of various kinds goes 
>beyond what is currently in DAML - what do we need to add to address 
>our requirements?
>Name I4.4-Extra-logical-feature-set
>Raised By James Hendler
>Date 19 Apr 2002
>Status OPEN, 5 Sep 2002
Owner Mike Dean

where the requirements referred to include (from our requirements doc [2]):

>R5. Ontology metadata
>     It must be possible to provide meta-data for each ontology, such 
>as author, publish-date, etc. The language should provide a standard 
>set of common metadata properties. These properties may or may not 
>be borrowed from the Dublin Core element set.
>     Motivation: Shared ontologies
>R6. Versioning information
>     The language must provide features for comparing and relating 
>different versions of the same ontology. This should include 
>features for relating revisions to prior versions, explicit 
>statements of backwards-compatibility, and the ability to deprecate 
>terms (i.e., to state they are available for backwards-compatibility 
>only, and should not be used in new applications/documents.)
>     Motivation: Ontology evolution

[2] http://www.w3.org/TR/webont-req/
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 07:42:21 UTC

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