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Re: Namespace evolution.

From: Tod Matola <matola@oclc.org>
Date: Mon, 16 Oct 2000 08:45:52 -0400
Message-ID: <39EAF880.1DC38316@oclc.org>
To: Thomas Baker <thomas.baker@gmd.de>
CC: "Sigfrid Lundberg, Lub NetLab" <siglun@gungner.lub.lu.se>, Rachel Heery <lisrmh@ukoln.ac.uk>, Shigeo Sugimoto <sugimoto@ulis.ac.jp>, Jason Diamond <jason@injektilo.org>, www-rdf-interest@w3.org
Thomas Baker wrote:

> On Mon, 16 Oct 2000, Sigfrid Lundberg, Lub NetLab wrote:
> > On Mon, 16 Oct 2000, Jason Diamond wrote:
> > > I just found this document, "Using Dublin Core in XML" [1], also a Working
> > > Draft but much more recent, that uses http://purl.org/dc/elements/1.1/ as
> > > the namespace. Thanks in advance to everyone who was going to point that
> > > out. I still don't like the fact that it's version dependant.
> >
> > Neither do I. Again, if you want to influence the development of these
> > documents, turn to the DCMI itself.
> Shigeo Sugimoto, his colleagues, and I just finished a short paper
> discussing some versioning requirements and alternative ways to version
> the Dublin Core. We also come down in favor of version-independent
> namespace and element names.  At the same time, we suggest some
> mechanisms for helping developers or archivists specify or reconstruct
> the exact state of namespaces and definitions as of a particular date.
> We "very soon now" wanted to turn this paper into a strawman for
> discussion on the mailing list of the DCMI Registry Working Group
> (http://www.mailbase.ac.uk/lists/dc-registry/join.html) and welcome
> anyone from this list to join.  I would be happy to share this paper
> with anyone in the meantime.
> Tom
> _______________________________________________________________________________
> Dr. Thomas Baker                                            Thomas.Baker@gmd.de
> GMD Library
> Schloss Birlinghoven                                           +49-2241-14-2352
> 53754 Sankt Augustin, Germany                              fax +49-2241-14-2619


 In case you forgot your DCMI decoder ring.

The Dublin Core Metadata Initiative (DCMI) [1] realized that it was paving it way
into an aspect of RDFS that is rather new (what to do about multiple versions of
schemas).  At the same time we recognized a need to organize and manage such
schema relationships (a way to keep the documents in sync with prose documents
that describe them or how schema relate to one another). And when you consider
that there are 26+ language translation [2] of the Dublin Core Element Set (DCES)
[3], you can see the problems grow at a significant rate.

So to tackle such a problems, version (or the lack there of we hope), status,
languages, element extensions and qualifiers, annotations, etc.  DCMI has tasked a
working group (DC-Registry) to discussion this set of problems, that are quickly
becoming a sore spot for DCMI (but RDFS as well).  Again I'll follow Tom's lead
and hope that anyone that has an interest in such issues will join the working
group[4] and come up with clear answers to question and the problems. BTW this
activities has just got underway so there is much work to be down.

Cheers Tod Matola

[1] http://purl.org/dc/
[2] http://purl.org/dc/groups/languages.htm#multilingual
[3] http://purl.org/dc/elements/1.1/
[4] http://www.mailbase.ac.uk/lists/dc-registry/
Received on Monday, 16 October 2000 08:30:42 UTC

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