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Re: [ontolog-forum] Ontology vs OWL implementation

To: "Cati Martínez" <catiux@xxxxxxxxx>
Cc: ontolog-forum@xxxxxxxxxxxxxxxx
From: Pat Hayes <phayes@xxxxxxx>
Date: Thu, 1 May 2008 00:08:56 +0200
Message-id: <p06230903c43e9d4786e7@[]>
At 8:21 PM +0200 4/30/08, Cati Martínez wrote:
>I'm new in the Ontology world, and maybe it has been already
>discussed, I'm asking me the question if everything implemented in the
>OWL language can be considered an Ontology. I guess that it's not so,
>but it is difficult for me to say when we can say that it is or not.    (01)

The term 'ontology' has no definition precise 
enough to answer that question. Myself, I'd be 
inclined to say yes, anything in OWL is an 
ontology. Certainly one would not expect any OWL 
tool or engine to  start distinguishing between 
'real ontology OWL' and 'mere OWL'.    (02)

>I'm modelling with OWL some information structure, so OWL is used to
>define the components and relations to these components that compose
>this concrete information structure.    (03)

Sounds like an ontology to me, on just about 
anyone's definition. Why are you in doubt?    (04)

>Could it be considered an
>Ontology, or only a set of constraints on a data structure?    (05)

It can be both. A set of constraints in the form 
of an ontology. One cautionary note, however: to 
interpret OWL as a constraint is likely going 
beyond the strict OWL spec. Which is fine, I 
hasten to add, but it might get you into 
unproductive debates about whether your use of 
OWL is a true 'ontological' use of OWL, etc. 
etc...    (06)

Pat Hayes    (07)

>Thank you. Regards
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