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   RE: [xml-dev] URIs harmful (was RE: [xml-dev] Article: Keeping pace wit

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Irrelevant language wordsmithing, the sort of thing that 
the HTML community liked to lay at the feet of their 
elders as "lawyering over design".  The fact that it 
is circular is bad authoring.  The fact that one placed 
in an address box, if the scheme morph is there and 
there is access to a resolver, it is expected to attempt 
to resolve.    The fact of different representations being 
available given a resource is in the nature of the resource. 
If you reference a process that varies over time, don't 
expect a constant.  It is the resource that decides.  The 
clock is the example Fielding gives, and that is fine; 
it returns a time.   That is consistent and precictable. 
It is the notion that what is returned is unique that 
is hosed.  It is a member of a set.  Without the set 
membership, it's identity is meaningless.

Differentiation of an ambiguous symbol depends on 
context.  Browsers are blithely unaware.


From: Jimmy Cerra [mailto:jc2astro@hotmail.com]

> A URzed is always dereferenceable.

Did you mean URI, URN or URL?

If you meant anything other than URL, then I disagree with you.  Per the
TLA, an instance of an URI represents the Identity of a Resource.  This
seems like a fancy phrase for "a reference to something" or "a symbol for
something" in my view.  Thus I place URIs in the same class as addresses,
bibliographic references, and person names.

It is not always dereferenceable, however.  How would you dereference a URI
identifying itself [1]?  Further, the "something" may be an abstract concept
like a point in time: for instance you can't dereference a date that has
already occurred, but you can reference it.


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