- From: Sean B. Palmer <sean@mysterylights.com>
- Date: Fri, 15 Jun 2001 14:46:32 +0100
- To: "Sampo Syreeni" <decoy@iki.fi>
- Cc: <www-rdf-interest@w3.org>
> > Once again, this is no problem, unless you somehow believe > > that what you get back from a namespace upon dereferening > > it is the "one truedefinition" of the terms in that namespace; > > utter nonsense. > > That is my problem, yes. I seem to think that URIs should only > identify a single resource, as it's a lot more difficult to deal with > URIs if they don't. Plus, it's not in accordance with the original > definition of URIs. Actually, they still only reference one resource, it's just that the use of that resource varies from context to context. Again, my example: if I use http://www.iki.fi/~decoy/front in my systems to denote the concept of a "brick", does that mean that a) your homepage is now a brick or b) that you have to move your homepage in any way? Now, let's say you're using a URN: the situation could actually be considered worse, because urn:name:www.iki.fi/home to identify the concept of your homepage is only ever defined by the context of its use. If I sell a million of my SW systems and they all use that URN for the concept of "brick", does it *make* the resource identified by that URN a brick? Well, in my systems, it does. But in your systems, it is a concept of a "homepage". cf. [1]. And of course, what is a "brick"? That's only set up by the lines of programming code in my system, so even that is (an admittedly built in) context. The question here is about trust and authority. If I say that I only trust a piece of RDF using your homepage as a URI in it somewhere if and only if it is digitally signed by a digital signature that I know is from you, then I can be "sure" that the context of its use will be the one that is "correct" to you. [1] http://lists.xml.org/archives/xml-dev/200103/msg01053.html -- Kindest Regards, Sean B. Palmer @prefix : <http://webns.net/roughterms/> . :Sean :hasHomepage <http://purl.org/net/sbp/> .
Received on Friday, 15 June 2001 09:45:53 UTC