Seth,
> > There are 3 registered schemas currently in the registry:
> >
> > http://purl.org/dc/elements/1.1/
> > http://purl.org/dc/terms/
> > http://purl.org/dc/dcmitype/
>
> Ok I'll put those in my dictionary. When it is updated can
> I assume that
> the updated Schema will appear at those addresses?
Yes. These are PURLs. They will be changed to redirect to the new versions
when they are published.
> Incidentally, what is going to happen to
> <http://dublincore.org/2000/03/13/eor> ?
> That had 'Schema' and 'WebPage' that don't seem to be defined
> in any of the
> schema above; but are needed, imho.
I agree we need deginitions for Schema and Webpage. Ideally this would come
from the RDF community so that everyone could define these resource the same
way. Perhaps the UB will take this on? The EOR schema will continue to
exist but I don't expect to see any further changes to it. I also don't
expect the DC schemas to use it.
> > They are listed on the search page under the large heading
> "Summary of
> > Registered RDF Schemas". They are displayed when you first
> access the
> page,
> > or by selecting "display schemas" from the drop-down list.
>
> And the URL of the page ?
I'm not sure what you are asking? Are you asking for the URL of the
Registry search page? I'm confused by this since I thought this discussion
began based on your review of that application? The Registry URL is:
http://wip.dublincore.org:8080/dcregistry/index.html. The search page is
at: http://wip.dublincore.org:8080/dcregistry/queryServlet or can be
accessed by clicking on the 'search' link.
> > I am confused by your seeAlso comment. We use
> 'isDefinedBy' to relate
> > properties and classes to a particular schema. seeAlso is used for
> > secondary references to documentation.
>
> Yes I understand that. 'isDefinedBy' relates a term to a
> Schema. 'seeAlso'
> relates a Resource to a Resource; but it does so in a
> unspecific manner.
> I'm calling for a way to relate a Resource to a document that contains
> triples, such that an automated agent can dereference the
> object to obtain
> the triples. Lots of people are using 'seeAlso' for that
> purpose, but they
> also use it just to point to a WebPage. How is the automated
> agent to know?
> This is really a very simple and obvious concept ... semref
> is exactly to
> RDF Documents as a <a href> is to HTML documents.
>
> I can understand if DC doesn't want to give this a home, but
> it badly needs
> a home ... and imho DC is the right home.
One of the discussion items scheduled for this WG at DC2002 is the phase 2
requirements, which will focus on a machine interface for the Registry. I
expect one of the action items produced by that discussion will be a
recommendation to the UB for any new terms needed to facilitate that API.
This appears to fall into that category. I'll make sure it is included in
our discussion. It would be great if you could attend. If that is not
possible please send any additional information to support this requirement
to this mailing list prior to the conference date. Thanks.
Regards,
Harry
> Seth Russell
> http://robustai.net/sailor/
>
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