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Re: "Define" a class, or "Declare" a class? "Define" a property, or "Declare" a property?

From: Steven Gollery <sgollery@cadrc.calpoly.edu>
Date: Wed, 05 Mar 2003 10:41:03 -0800
Message-ID: <3E6644BF.6010906@cadrc.calpoly.edu>
To: www-rdf-logic@w3.org


Peter F. Patel-Schneider wrote:

>From: "Roger L. Costello" <costello@mitre.org>
>Subject: "Define" a class, or "Declare" a class? "Define" a property, or "Declare" a property?
>Date: Wed, 05 Mar 2003 08:06:43 -0500
>
>>Hi Folks,
>>
>>XML Schema distinguishes between "defining" and "declaring", e.g.,
>>you "define" types, but you "declare" elements.  Does OWL make such a
>>distinction?  That is, do you "define" a class, or do you "declare" a
>>class?  Do you "define" a property, or do you "declare" a property?
>>
>>Thanks!  /Roger
>>
>
>Well, OWL does *not* have a notion of the definition of anything.
>
What would be the right verb, then? For instance, the OWL Guide says:

This document demonstrates the use of the OWL language to

   1. formalize a domain by defining classes and properties of those
      classes,
   2. define individuals and assert properties about them, and

What would be appropriate in place of "defining" and "defines"?

Steven Gollery
sgollery@cadrc.calpoly.edu



>  OWL DL
>does require a division of properties between object-valued properties and
>data-valued properties.  You might consider the part of an OWL DL ontology
>that provides this information as declarations of OWL properties.
>
>In summary, however, the answers to your questions are 
>
>	NO
>
>and
>
>	NEITHER
>
>peter
>
>
Received on Wednesday, 5 March 2003 14:14:24 GMT

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