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RE: Namespace name: better to use URN or URL?

On Tuesday, September 04, 2001 4:52 PM Brian Hayes wrote:
> I prefer URNs since URLs tend to imply that I need to have a web
> server running that responds to the URL and can serve up the 
> schemas
Only if someone needs to resolve them.  Namespaces are just unique values.
There is no requirement (or expectation) to resolve the URI used as a
namespace value.  

> Perhaps one thing to clarify is to ask what namespaces are
> primarily intended to do.  
The purpose of XML namespaces is to distinguish between duplicate element
type and attribute names, not necessarily for pointing to additional online

The namespace itself may be identified by a URI.  Any element type or
attribute name within an XML namespace can be uniquely identified by a
two-part name: the URI of its XML namespace and its local name.  Anything
else is a potential extension of the rec.