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Re: owl:sameAs confusion (Ref and Guide)

From: Peter F. Patel-Schneider <pfps@research.bell-labs.com>
Date: Thu, 29 May 2003 13:24:23 -0400 (EDT)
Message-Id: <20030529.132423.28958316.pfps@research.bell-labs.com>
To: schreiber@swi.psy.uva.nl
Cc: jjc@hplb.hpl.hp.com, www-webont-wg@w3.org, ijd@hplb.hpl.hp.com

I am not convinced that there has been a decision on whether owl:sameAs is
in OWL DL.

peter


From: Guus Schreiber <schreiber@swi.psy.uva.nl>
Subject: Re: owl:sameAs confusion (Ref and Guide)
Date: Wed, 28 May 2003 14:17:52 +0200

> 
> [reposted from my old address, for some reason my first reply did not 
> make it to the list]
> 
> Jeremy Carroll wrote:
>  >
>  >
>  > The HP team report that we have had difficulty working on owl:sameAs
>  > because different team members are working from different documents.
>  >
>  > S&AS excludes owl:sameAs from OWL DL and OWL Lite.
> 
> 
> This looks to me like a bug. The final resolution on Issue 4.6 
> (EquivalentTo)
> 
>    http://www.w3.org/2001/sw/WebOnt/webont-issues.html#I4.6-EquivalentTo
> 
> states clearly that sameAs is a synonym for sameIndividualAs and says 
> nothing about it only being in Full. The minutes of the relevant telecon 
> (Nov 11) contain a suggested methodological guideline that sameAs may 
> typically be used in Full when the types of the subject/object are 
> unknown, but that's something different.
> 
>  > Guide recommends not using owl:sameAs (ever), but states that it is
>  > synonymous with owl:sameIndividualAs, and suggests that using
>  > owl:sameAs between classes is in full.
>  > Ref is more positive about owl:sameAs.
>  >
>  > It would be helpful if the story were clearer, in particular Ref and
>  > Guide should say that all uses of owl:sameAs are in Full
> 
> Not true, see above.
> 
>  > (personally, I would not mind simply dropping owl:sameAs).
> 
> The introduction of the synonym was part of a WG compromise (some 
> preferred sameAs instead of sameIndividualAs). I see no reason to 
> revisit this decision.
> 
> I propose the S&AS, Guide and Ref editors take actions to ensure their 
> documents are consistent with the current resolution.
> 
> Guus
> 
>  >
>  > Jeremy
>  >
>  >
> 
> -- 
> Free University Amsterdam, Computer Science
> De Boelelaan 1081a, 1081 HV Amsterdam, The Netherlands
> Tel: +31 20 444 7739/7718
> E-mail: schreiber@cs.vu.nl
> Home page: http://www.cs.vu.nl/~guus/
> 
> 
Received on Thursday, 29 May 2003 14:50:15 GMT

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