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RE: the owl.owl file

From: Michael Schneider <schneid@fzi.de>
Date: Fri, 16 Oct 2009 11:15:06 +0200
Message-ID: <0EF30CAA69519C4CB91D01481AEA06A0017EC232@judith.fzi.de>
To: <public-owl-wg@w3.org>
Cc: "Sandro Hawke" <sandro@w3.org>
Hi!

This just came to mind: There has recently been discussion [1] about
owl.owl. If I correctly understand the original poster, he was wondering why
this ontology isn't represented in the OWL 2 documents. You may remember
that owl.owl /was/ represented in OWL 1 as an (non-normative) appendix in
the OWL Reference [2]. 

Anyway, the essential content (excluding annotations) of the new owl.owl
file happens to be represented (or "backed") in our document suite as well,
although in a very non-obvious way by means of two tables on "axiomatic
triples" in the RDF-Based Semantics [3a,3b] (btw, that's again a
non-normative appendix). This alignment was what I was working on and which
took me most of the time when I re-designed owl.owl at that time. But
without having a note on this alignment somewhere it will, at best, look
like an accidental coincidence, if anyone will notice it at all.

So I wonder whether we should make this connection explicit by adding text
like the following to the comment in the ontology header of owl.owl:

	The content of this ontology corresponds to Tables 6.1 and 6.2
      in Section 6.4 of the OWL 2 RDF-Based Semantics specification
	at http://www.w3.org/TR/owl2-rdf-based-semantics/.
	Note that those tables do not include the different annotations
	(labels, comments and rdfs:isDefinedBy links) used in this file. 
 
Any comments (beyond the above :))?

Cheers,
Michael

[1]
<http://lists.w3.org/Archives/Public/public-owl-dev/2009OctDec/0006.html>
[2] <http://www.w3.org/TR/owl-ref/#appB>
[3a]
<http://www.w3.org/TR/owl2-rdf-based-semantics/#table-axiomatic-classes>
[3b]
<http://www.w3.org/TR/owl2-rdf-based-semantics/#table-axiomatic-properties>

>-----Original Message-----
>From: public-owl-wg-request@w3.org [mailto:public-owl-wg-request@w3.org]
>On Behalf Of Sandro Hawke
>Sent: Thursday, October 15, 2009 6:35 AM
>To: public-owl-wg@w3.org
>Subject: the owl.owl file
>
>
>I converted what Michael prepared at:
>
>     http://www.w3.org/2007/OWL/wiki/Owl2DotOwlDevel
>
>to an RDF/XML file, currently at:
>
>     http://www.w3.org/2009/10/beta-owl
>
>I modified it, in a manner documented in comments, so that it currently
>thinks the OWL 2 namespace is:
>
>     http://www.w3.org/2009/10/beta-owl#
>
>so that tools that do namespace dereferencing can try it out, using this
>different namespace.
>
>The plan is to change that back to:
>
>       http://www.w3.org/2002/07/owl#
>
>and publish it at
>
>       http://www.w3.org/2002/07/owl
>
>when OWL 2 is published as a Recommendation.
>
>I plan to at least add the GRDDL triple, shortly, so I can test GRDDL
>transforms.
>
>    -- Sandro

--
Dipl.-Inform. Michael Schneider
Research Scientist, 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
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Received on Friday, 16 October 2009 09:15:42 GMT

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