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Re: some thoughts about the OWL WG comments

From: Alistair Miles <alistair.miles@zoo.ox.ac.uk>
Date: Mon, 13 Oct 2008 17:29:51 +0100
To: Antoine Isaac <aisaac@few.vu.nl>
Cc: Guus Schreiber <schreiber@cs.vu.nl>, SWD WG <public-swd-wg@w3.org>
Message-ID: <20081013162949.GA14576@skiathos>

On Mon, Oct 13, 2008 at 09:43:15AM +0200, Antoine Isaac wrote:
> Hi,
>
> There is something I don't understand here: if we do not need to use  
> custom user-defined datatypes when one needs only one notation, what  
> should be used in that case then? No datatype?

A plain literal with no language tag, I guess...

<foo> skos:notation "bar" .

Al.

>
> Antoine
>
>> Hi Guus,
>>
>> On Thu, Oct 09, 2008 at 04:03:19PM +0200, Guus Schreiber wrote:
>>   
>>> NOTATIONS
>>>
>>> [[
>>>   The OWL WG notes that one portion of SKOS (Notations) uses custom
>>> datatypes.  Although these seem to be benign, because RDF and OWL allow
>>> extra datatypes, the use of these datatypes is not likely to be
>>> supported by many tools.  The presence of extra datatypes may cause
>>> difficulties in some tools, which may just reject SKOS documents that
>>> have these datatypes.
>>> ]]
>>>
>>> Sean already pointed out that we can indicate in the document that   
>>> user-defined datatypes are only explicitly needed when one needs   
>>> multiple notations (so only in Sec. ). In addition I would like to 
>>> add  the tools should not reject SKOS documents containing 
>>> user-defined  datatypes, see the OWL reference section on datatype 
>>> reasoning [2], in  particular the last sentence:
>>>
>>> [[
>>>   Unrecognized datatypes should be treated in the same way as   
>>> unsupported datatypes.
>>> ]]
>>>     
>>
>> This approach seems sound to me.
>>
>> Cheers,
>>
>> Alistair.
>>
>>   
>
>

-- 
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 Monday, 13 October 2008 16:30:28 GMT

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