W3C home > Mailing lists > Public > www-rdf-interest@w3.org > June 2001

RE: What to do about namespace derived URI refs... (long)

From: <Patrick.Stickler@nokia.com>
Date: Wed, 6 Jun 2001 17:58:51 +0300
Message-ID: <6D1A8E7871B9D211B3B00008C7490AA507958720@treis03nok>
To: jborden@mediaone.net, Patrick.Stickler@nokia.com, sean@mysterylights.com, www-rdf-interest@w3.org
Cc: Ora.Lassila@nokia.com

No, this is still missing the point. Even if I am able
to use RDDL to retrieve a DTD, an XML Schema, an RDF Schema,
etc. etc. associated with a namespace, that *still* does
not address the problem that the abstract information
resources (e.g. properties, etc.) defined in any of those
schemas may have varying URI references!

There should be, e.g. for the DC 'Title' property, one consistent
URI reference that can be used by RDF Schemas to reference it, and
that URI reference should be the same regardless as to whether
my system is using a DTD, an XML Schema, or any other schema
to define well formedness or validity constraints on the serialization
of data streams for interchange into/out of that system.

I think that RDDL solves a very important problem, but that's not
the problem I'm talking about here.


> -----Original Message-----
> From: ext Jonathan Borden [mailto:jborden@mediaone.net]
> Sent: 06 June, 2001 17:25
> To: Patrick.Stickler@nokia.com; sean@mysterylights.com;
> www-rdf-interest@w3.org
> Cc: Ora.Lassila@nokia.com
> Subject: Re: What to do about namespace derived URI refs... (long)
> >
> > The key point here is that (a) we use URNs rather than URLs
> > to identify namespaces and abstract resources, and (b) we
> > define the necessary mappings between a standardized URN
> > scheme and the various schema and serialization schemes
> > that might reify or reference those abstract resources
> > within a given system (i.e. XML Schema, RDF, etc.).
> >
> The XML-DEV group has been discussing this issue at length. RDDL
> http://www.rddl.org is suggested as a format to describe 
> namespace related
> resources such as schemata, CSS etc. A RDDL document may be 
> resolved by a
> URL, or via a URN using something like the DDDS mechanism:
> http://www.ietf.org/internet-drafts/draft-ietf-urn-uri-res-ddds-03.txt
> -Jonathan
Received on Wednesday, 6 June 2001 10:59:09 UTC

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