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   Re: [xml-dev] URIs are simply names was: Re: [xml-dev] "Abstract" URIs

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Jonathan Borden wrote:

> A URI is simply a name for a thing, whatever that thing may be. A name is
> not the thing that it names, just as the string "Alaric Snell" is not you.
> The concept of names was not invented yesterday, nor in 1991. The
> relationship between names and the things they name has been formally worked
> out in various logics etc. for centuries.

Yes, but this relationship has been used by human being used to deal 
with a certain level of ambiguity and our applications would be easier 
to develop if this ambiguity was removed.

A superficial look at various specifications makes me feel worried that 
it might not always be the case even between W3C specifications :=) !

If we take "http://example.org/my-namespace.xml#foo"; for instance...

For XPointer, this is the XML element which ID is "foo".

For RDF, this can be element which type (ie name) is "foo" in namespace 

For W3C XML Schema, the QName equivalent (ex:foo) is (depending on the 
context) the element, the global attribute, the simple or complex type, 
the element group AND the attribute group named "foo" for the target 
namespace "http://example.org/my-namespace.xml";.

This doesn't help to understand what 
"http://example.org/my-namespace.xml#foo"; might be identifying :=) !


PS: of course, if http://example.org/my-namespace.xml is a RDDL 
document, http://example.org/my-namespace.xml#foo might contain a 
documentation of what it really means...
Rendez-vous a Paris pour mes formations XML/XSLT.
Eric van der Vlist       http://xmlfr.org            http://dyomedea.com
http://xsltunit.org      http://4xt.org           http://examplotron.org


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