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RE: Information resources?

From: Jon Hanna <jon@hackcraft.net>
Date: Thu, 9 Sep 2004 14:40:13 +0100
Message-ID: <1094737213.41405d3d6f23b@82.195.128.192>
To: "www-tag@w3.org" <www-tag@w3.org>

Quoting "Patrick.Stickler@nokia.com" <Patrick.Stickler@nokia.com>:

> > > Yes. A "web resource" is a subclass of "resource".
> > > 
> > > A "resource" is a "resource".
> > > A "web resource" is a "resource".
> > > A "representation" is a "resource".
> > 
> > No, a representation is a resource only if there is a URI (or 
> > perhaps an RDF
> > BNode) for the represetation. 
> 
> Let's be sure we mean the same thing by "resource".
> 
> *Anything* can be a resource, whether it is named by a URI
> or denoted by an anonymous node in an RDF graph.
> 
> However, if we are to refer to a resource in a way that is
> significant to either the web or semantic web machinery, then
> we need to use URIs, URIrefs, or anonymous nodes.

Agreed, it isn't "on the web" until then, but clearly it's a resource before
then. If I would accept any distinction between "web resource" and "resource"
it would be that a "web resource" is already identified by a URI (or perhaps
indirectly through a IFP value that is a URI, though this is less clear and
brings in OWL matters that don't necessarily apply to much of the web
technologies).

> Agreed. The URI used to denote a resource should be distinct
> from the URI to denote its representation (unless, of course,
> the resource and representation are the same -- as would be
> the case of the representation of a representation, which
> would correspond to a bit-equal copy of itself).

Yes. Another time when a resource and it's representation are one and the same
would be a software patch or any other item where downloading the file itself
is the whole point of it being there. Of course in both these cases there could
be other representations as well, just as there can be multiple representations
for any resource.

-- 
Jon Hanna
<http://www.hackcraft.net/>
"I started to accept the mess I'm in. I know that mess spelled backwards is
ssem
and I felt much better armed with that information." - Tori Amos
Received on Thursday, 9 September 2004 13:40:19 GMT

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