Re: draft response for 47 / MK1 (discussed in F2F5)

Good example, I'll add it.

peter


From: Ivan Herman <ivan@w3.org>
Subject: Re: draft response for 47 / MK1 (discussed in F2F5)
Date: Wed, 25 Feb 2009 14:39:30 +0100

> Maybe worth adding a small example on the usability of non-functional
> keys? My example: I have two passport numbers: one Hungarian and one
> French. Ie, the passport number property should not be functional for
> me, but if I create a key which combines that with my nationality, then
> it works as a (pair) of keys...
> 
> Cheers
> 
> Ivan
> 
> Peter F. Patel-Schneider wrote:
>> [Draft Response for LC Comment 47] MK1
>> Dear Marijke,
>> Thank you for your message
>>   http://lists.w3.org/Archives/Public/public-owl-comments/2009Jan/0062.html
>> on the OWL 2 Web Ontology Language last call drafts.  This response
>> addresses the second and third parts of your message. The OWL working
>> group realizes that keys are often functional (and thus
>> 1:1).  OWL in general does not have a requirement that properties are
>> functional.  Non-functional keys may be useful in some applications, so
>> the OWL working group has worries that requiring keys to always be
>> functional would interfere with some potential uses of OWL.
>> In any case, as you say, properties can be made functional in OWL,
>> either locally or globally, and this provides for functional keys.
>> Therefore, the OWL working group does not intend to change OWL 2 or to
>> make any changes in the OWL 2 document in response to your comment.
>> Please acknowledge receipt of this email to
>> <mailto:public-owl-comments@w3.org> (replying to this email should
>> suffice). In your acknowledgment please let us know whether or not you
>> are satisfied with the working group's response to your
>> comment. Regards,
>> Peter F. Patel-Schneider
>> on behalf of the W3C OWL Working Group 
> 
> -- 
> 
> Ivan Herman, W3C Semantic Web Activity Lead
> Home: http://www.w3.org/People/Ivan/
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