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Re: ISSUE-138 draft response

From: Alistair Miles <alistair.miles@zoo.ox.ac.uk>
Date: Thu, 2 Oct 2008 20:15:51 +0100
To: Sean Bechhofer <sean.bechhofer@manchester.ac.uk>
Cc: SWD Working SWD <public-swd-wg@w3.org>
Message-ID: <20081002191550.GD6809@skiathos>

Looks good to me.

On Thu, Oct 02, 2008 at 05:03:21PM +0100, Sean Bechhofer wrote:
>
>
> Hi all,
>
> Here's a draft response to Michael on [ISSUE-138], let me know what you
> think. Note *this is just a draft, not the actual response* -- I'll
> wait for feedback from the WG before replying formally to
> Michael. (Michael if you're lurking on this list feel free to post your
> thoughts at any time.)
>
> 	Sean
>
>
> Dear Michael
>
> Thank you for your comments [1]:
>
> """
> Such a kind of functional property characteristics distinguished by  
> language
> tags cannot be expressed in OWL Full. I suggest to say this somewhere in 
> the
> document.
>
> Again, I want to hint you to rdf:text, in combination with OWL 2, which 
> is going
> to allow for specifying data ranges consisting of all plain literals  
> having a
> given language tag. A somewhat more general feature was the resolution of
> issue-71 of the OWL WG, accepting this proposal:
> <http://lists.w3.org/Archives/Public/public-owl-wg/2008Sep/0053.html>. 
> But,
> AFAICS, one would need to build a <=1-qualified cardinality restriction 
> (new
> feature in OWL 2) on each such language-data range in order to simulate a
> functional property of the kind above. So this is probably all a bit  
> academic.
> """
>
> -------------------------------------------------------------
>
> As you point out, there are some constraints in the SKOS data model that 
> we are unable to express in OWL (some of these /may/ be addressed by OWL 
> 2, but in the current SKOS specification we are avoiding reference to 
> work in progress). In such cases, the constraints are expressed in prose 
> in the document.
>
> Statements to this effect are made in Section 1.7.1 of the LC draft. Do 
> you feel these are sufficient, or do we need to further elaborate this 
> point?
>
> Cheers,
>
> 	Sean Bechhofer
> 	Alistair Miles
>
> [ISSUE-138] http://www.w3.org/2006/07/SWD/track/issues/138
> [1] http://lists.w3.org/Archives/Public/public-swd-wg/2008Sep/0044.html
>
> --
> Sean Bechhofer
> School of Computer Science
> University of Manchester
> sean.bechhofer@manchester.ac.uk
> http://www.cs.manchester.ac.uk/people/bechhofer
>
>
>
>

-- 
Alistair Miles
Senior Computing Officer
Image Bioinformatics Research Group
Department of Zoology
The Tinbergen Building
University of Oxford
South Parks Road
Oxford
OX1 3PS
United Kingdom
Web: http://purl.org/net/aliman
Email: alistair.miles@zoo.ox.ac.uk
Tel: +44 (0)1865 281993
Received on Thursday, 2 October 2008 19:28:18 GMT

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