Re: TR: [xml-dev] RDDL (was RE: [xml-dev] Negotiate Out The Noise )

[Michael Brennan <mpbrennan@earthlink.net>]

John Cowan wrote:
> 
> Nicolas Lehuen wrote:
> 
> > Are those catalog DNS like ?
> 
> They could be, though there is currently nothing analogous to the DNS
> root servers.  Catalogs can be local or remote, and local catalogs
> can delegate to remote ones, since catalogs are referred to by
> URIs.

And an XML instance can contain a PI that points to a default catalog
that the application can fall back to resolve URIs. The referenced
catalog is appended to the end of the chain of catalogs to search.