Accessible representations are compatible with "tag" and "urn" schemes

Joshua Tauberer wrote to the Semantic-Web discussion list
(<mailto:semantic-web@w3.org>) on 9 Oct 2005 in “Re: New Intro to RDF”
(<mid:4349572B.8050700@for.net>,
<http://www.w3.org/mid/4349572B.8050700@for.net>):

> The whole point of tag: and urn: is to have a system of creating 
> identifiers for things that have no representation on the web.

This is not so. Resources that “tag” and “urn” URIs identify may have
representations accessible on the Web. Take, for example,
<urn:ietf:rfc:2141>. Surely one can find a representation of Internet
RFC 2141 by HTTP or by FTP.

The question, rather, is whether the scheme of a given URI implies an
algorithm for dereferencing.

-- 
Etan Wexler.

Received on Saturday, 15 October 2005 07:21:12 UTC