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