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Re: Response to JC5

From: Alan Ruttenberg <alanruttenberg@gmail.com>
Date: Fri, 15 May 2009 17:05:39 -0400
Message-ID: <29af5e2d0905151405q60b1dd6bh61218bcb0dbd2b7b@mail.gmail.com>
To: "Peter F.Patel-Schneider" <pfps@research.bell-labs.com>
Cc: schneid@fzi.de, ian.horrocks@comlab.ox.ac.uk, public-owl-wg@w3.org
Looks fine to me.

On Fri, May 15, 2009 at 4:57 PM, Peter F.Patel-Schneider
<pfps@research.bell-labs.com> wrote:
> I believe that Ian mistyped, and has been referring to JC6.  He merged
> our two replies.
> I am happy with the merge.  If you are as well, I think that you can
> send it out tomorrow.
> peter
> From: "Michael Schneider" <schneid@fzi.de>
> Subject: RE: Response to JC5
> Date: Fri, 15 May 2009 22:51:29 +0200
>> Hi!
>>>-----Original Message-----
>>>From: public-owl-wg-request@w3.org [mailto:public-owl-wg-request@w3.org]
>>>On Behalf Of Ian Horrocks
>>>Sent: Friday, May 15, 2009 6:54 PM
>>>To: OWL 1.1
>>>Cc: Peter Patel-Schneider
>>>Subject: Response to JC5
>>>The current draft [1] looks good to me -- speak up now if you disagree.
>> No, please stop!
>> """
>> Therefore the Working Group will not be making
>> any change to OWL 2 in response to this comment.
>> """
>> This is NOT what I have communicated to TQ! The change of the names, as we
>> have discussed yesterday, is crucial:
>>   owl:subject   --> owl:annotatedSource
>>   owl:predicate --> owl:annotatedProperty
>>   owl:object    --> owl:annotatedTarget
>> And possibly also some explaining text, probably in NF&R and/or Primer, that
>> the annotation vocabulary is meant to be used exclusively for annotation
>> purposes in the specifically defined way, if there isn't such text already.
>> Apart from this, in my discussion with TQ, I became aware that there might
>> really be an issue with getting back to RDF Reification for annotations, at
>> least a principle one. Topbraid Composer directly supports the reification
>> of arbitrary RDF statements, and mixing such unrestricted custom reification
>> with the very precisely defined annotation of axioms would possibly lead to
>> a mess.
>> In particular, since RDF reification is intended to happens at triple level,
>> while axiom annotation, although also technically only reifying a "main
>> triple", targets the complete triple /set/ encoding a given axiom. So,
>> depending on the view, the same reification statement could have different
>> scopes, and this may well confuse tools. Also, different types of axioms are
>> annotated in a different way, only some of them in a reification-style. So
>> while RDF reification would on the one hand be used by users also for other
>> things than creating OWL annotations, on the other hand it wouldn't cover
>> axiom annotation completely.
>> I still cannot precisely point to the bit which will definitely break the
>> system, so I have to think more deeply about this topic, but I believe that
>> there would be real hidden threads lurking around for some existing tools,
>> if we would use the RDF reification vocabulary for annotations.
>> Anyway, the draft needs to be redrafted before we can send it. It's
>> currently not in line with my discussion with TQ.
>> Michael
>>>Peter: if you don't hear anything to the contrary please send it off
>>>[1] http://www.w3.org/2007/OWL/wiki/LC2_Responses/JC5
>> --
>> Dipl.-Inform. Michael Schneider
>> Research Scientist, Dept. Information Process Engineering (IPE)
>> Tel  : +49-721-9654-726
>> Fax  : +49-721-9654-727
>> Email: michael.schneider@fzi.de
>> WWW  : http://www.fzi.de/michael.schneider
>> =======================================================================
>> FZI Forschungszentrum Informatik an der Universität Karlsruhe
>> Haid-und-Neu-Str. 10-14, D-76131 Karlsruhe
>> Tel.: +49-721-9654-0, Fax: +49-721-9654-959
>> Stiftung des bürgerlichen Rechts, Az 14-0563.1, RP Karlsruhe
>> Vorstand: Prof. Dr.-Ing. Rüdiger Dillmann, Dipl. Wi.-Ing. Michael Flor,
>> Prof. Dr. Dr. h.c. Wolffried Stucky, Prof. Dr. Rudi Studer
>> Vorsitzender des Kuratoriums: Ministerialdirigent Günther Leßnerkraus
>> =======================================================================
Received on Friday, 15 May 2009 21:06:44 UTC

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