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Re: a summary of skos changes

From: Antoine Isaac <aisaac@few.vu.nl>
Date: Tue, 09 Sep 2008 15:44:09 +0200
Message-ID: <48C67DA9.3@few.vu.nl>
To: Ed Summers <ehs@pobox.com>
CC: SWD Working Group <public-swd-wg@w3.org>

Hi Ed, Jon,

That's a very interesting work, indeed.
About your text, I have two comments:

> The skos:note, skos:changeNote, skos:definition, skos:example, 
> skos:historyNote, skos:scopeNote, skos:editorialNote were changed from being
> of type rdfs:Property to owl:ObjectProperty. 
That should not be true, as they can have any kind of object, including 
datatyped literals...

> SKOS2008 includes some new vocabulary elements for mapping concepts from one
> concept scheme to another: skos:exactMatch, skos:broadMatch, 
> skos:narrowMatch, skos:relatedMatch. 

There is also skos:closeMatch



> Jon Phipps and I have been invited to speak briefly about SKOS at an
> NKOS/CENDI meeting on Thursday [1]. The conveners are particularly
> interested in a summary of the changes to SKOS. I've take a very rough
> stab [2] at this, and would be interested in any feedback you may have
> on whether I've missed some big/small changes and/or mis-characterized
> them. I couldn't seem to find a summary of the recent changes to SKOS;
> if one exists please let me know!
> //Ed
> PS. Along the way I hacked together a little python utility called
> vdiff [3] for comparing vocabulary namespaces. It's pretty simplistic
> and the output is somewhat overwhelming [4], but it helped me get a
> handle on the changes to SKOS at least. If I had more time, or there
> was more interest it would be nice to adapt it to possibly use some
> more fully baked ideas [5,6]. Although vdiff is quite different in
> that it doesn't compare distinct resources, it compares vocabulary
> namespaces by guessing that say
> http://www.w3.org/2004/02/skos/core#Concept is the same as
> http://www.w3.org/2008/05/skos#Concept. It's not clear to me how much
> this situation actually happens in practice...
> [1] http://cendievents.infointl.com/kos_workshop_091108/
> [2] http://inkdroid.org/bzr/vdiff/example/skos-changes-summary.txt
> [3] http://inkdroid.org/bzr/vdiff/vdiff
> [4] http://inkdroid.org/bzr/vdiff/example/skos-diff.txt
> [5] http://www.w3.org/DesignIssues/Diff
> [6] http://vocab.org/changeset/schema
Received on Tuesday, 9 September 2008 14:45:02 UTC

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