W3C home > Mailing lists > Public > www-rdf-interest@w3.org > November 2000

Re: A triple is not unique.

From: <jos.deroo.jd@belgium.agfa.com>
Date: Tue, 21 Nov 2000 18:12:28 +0100
To: " - *www-rdf-interest@w3c.org" <www-rdf-interest@w3c.org>
Message-Id: <0006800035477987000002L072*@MHS>
Pierre-Antoine CHAMPIN wrote:
> McBride, Brian wrote:
> > So I see two options.  A resource can have multuple URI's in which
> > case the ability to assign multiple URI's to the same reified
> > statement is no problem.
> >
> > Option 2, resources can have only 1 URI, in which case there can be
> > multiple resources which model an RDF statement, but they are all
> > equivalent, as in DAML equivalentTo.
> I vote for option 2, definitely.
> Statements (nor trees, nor HTML pages) are not resources :
> reosurces are "conceptual mappings", which *denote* some (set of) entity.

My mind is still open to learn about the Web ...
There are URI's and there are RESOURCE's.
A URI is an identification of a RESOURCE in a universal space
(called URI-space).
Of course we have to use a notation for that!
If we use mathematical notation:
  u for URI
  r for RESOURCE
  It is an axiom that: u1 = u2 => r1 = r2 (just accept that)
If we use machine notation:
  URI-reference representation for URI
  literal-or-xml representation for RESOURCE
  A RESOURCE can have multiple (0, 1 or more) such representations

have to think now about anonymous RESOURCE's, proof-value RESOURCE's ...

Jos De Roo
Received on Tuesday, 21 November 2000 12:13:00 UTC

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