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Re: Ontology versions

From: Rinke Hoekstra <hoekstra@uva.nl>
Date: Fri, 21 Dec 2007 09:58:10 +0100
Cc: OWL Working Group WG <public-owl-wg@w3.org>
Message-Id: <3E5310D7-C4D6-415E-AB3A-845921F2AD13@uva.nl>
To: Jim Hendler <hendler@cs.rpi.edu>

On 20 dec 2007, at 19:10, Jim Hendler wrote:
> Rinke - FWIW, there is some versioning terminology in OWL 1.0 --  
> whatever we do with respect to both import and versioning, we do  
> have the responsibility to figure out what to do about those and to  
> appropriately update - esp. if we do anything non-backwards  
> compatible.

Good point. I tried to find them in the current OWL 1.1 drafts (syntax  
& rdf mapping), but they are silent wrt. these annotations (I don't  
think they are incompatible though).

> btw, with respect to the import discussion, I would point out that  
> this will have a very large impact if we are not backwards  
> compatible (several of the large deployed ontologies, esp. in the  
> govt sector,  are managed as somewhat separate pieces with a main  
> ontology that imports those pieces) , so we should be sure we are  
> careful to document any changes and if the old mechanism is changed,  
> to provide a well documented "fix"

I agree, and I believe this caution is broadly shared within the WG  
(cf. Jeremy's recent message and the telecon discussion).

-Rinke

> -JH
> p.s. Please note, none of this meant to in any way comment on the  
> imports issue - I never liked the old one anyway.
>
> On Dec 20, 2007, at 3:36 AM, Rinke Hoekstra wrote:
>
>>
>> I just posted a brain-dump on ontology versioning issues on the  
>> wiki at [1]. Feel free to add your own considerations etc.
>> It would be good, I think, to describe the issues in some more  
>> detail. Especially the way in which current tools deal with the  
>> names, imports and versions, and how XML, RDF and OWL interact.
>>
>> -Rinke
>>
>> [1] http://www.w3.org/2007/OWL/wiki/Ontology_Versions
>>
>> -----------------------------------------------
>> Drs. Rinke Hoekstra
>>
>> Email: hoekstra@uva.nl    Skype:  rinkehoekstra
>> Phone: +31-20-5253499     Fax:   +31-20-5253495
>> Web:   http://www.leibnizcenter.org/users/rinke
>>
>> Leibniz Center for Law,          Faculty of Law
>> University of Amsterdam,            PO Box 1030
>> 1000 BA  Amsterdam,             The Netherlands
>> -----------------------------------------------
>>
>>
>>
>>
>
> "If we knew what we were doing, it wouldn't be called research,  
> would it?." - Albert Einstein
>
> Prof James Hendler				http://www.cs.rpi.edu/~hendler
> Tetherless World Constellation Chair
> Computer Science Dept
> Rensselaer Polytechnic Institute, Troy NY 12180
>
>
>
>

-----------------------------------------------
Drs. Rinke Hoekstra

Email: hoekstra@uva.nl    Skype:  rinkehoekstra
Phone: +31-20-5253499     Fax:   +31-20-5253495
Web:   http://www.leibnizcenter.org/users/rinke

Leibniz Center for Law,          Faculty of Law
University of Amsterdam,            PO Box 1030
1000 BA  Amsterdam,             The Netherlands
-----------------------------------------------
Received on Friday, 21 December 2007 08:58:30 GMT

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