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Re: [ontolog-forum] International Alliance for Interoperability

To: "[ontolog-forum] " <ontolog-forum@xxxxxxxxxxxxxxxx>
From: Christopher Menzel <cmenzel@xxxxxxxx>
Date: Thu, 12 Mar 2009 18:18:17 -0500
Message-id: <615AA10D-4B80-4DEA-AB70-AB5F657B15B1@xxxxxxxx>
> Note that tabula rasa distinguishes several kinds of properties  
> (characteristics) according to space-time dependence and number of  
> existents involved. The mKR language uses different verbs and  
> pplists for these different kinds of properties.
> Contrast this to RDF/RDFS, which has only one kind of Property, and  
> OWL which has only two.    (01)

Feature.  The reason for this is that OWL is not itself an ontology;  
it is a very general, high-level framework for *creating* ontologies.   
Consequently, at this very high level, it only distinguishes  
"annotation properties" from "ontology properties" -- the former  
introduced, basically, to allow certain types of explicit metadata to  
be included in an ontology.  But one can *use* OWL to introduce as  
many properties as one pleases into an ontology.  In particular, it  
could be used to replicate (and, more usefully, axiomatize) your  
"tabula rasa" hierarchy.    (02)

Chris Menzel    (03)

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