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RE: Announce: XML Schema, The W3C's Object-Oriented Des cripti


make cripti
You are right.

What does a person do with the phrase:  kiss my grits. 
Depends on the person.

What does a computer do with the phrase:  kiss my grits. 
Depends on who programmed the computer.

It always depends on the person.  Ya gotta choose.

The problem is, that is not blind interoperability. 
The best we can do is try to know when we can be 
blind and when we need inspection to make a choice. 
For that, we end up with a hierarchy or distribution 
of authority who choose our choices.  It is better 
if decentralized and that is the URI is there to 
provide.  But that means a URI can't designate the 
same thing every time.  It can point off to an 
index of things from which another process can 
choose.  Thus, RDDL and XML catalogs.

If we deny the semantic of the namespace, we 
have said it isn't interpretable and so the 
"preferred reading" has to be known a priori. 
This leads to the dominant vendor.

If we say the semantic of the namespace is 
interpretable, we may or may not also want 
to provide a means for a local to interpret it. 
This leads to dereferencing and then it is 
useful to have a common mean or means to 
point to the currently known choices. 
This leads to RDDL and XML catalogs.

If we say we are agnostic about this issue, 
(URIs are just unique strings), we leave a hole 
and create a mess of unreliable expectation.
  
"The barnyard gate is as wide as the pasture" to quote myself.

Mutation will not often produce a survival trait.  Interspeciation 
and recombination can.  For that to work, you need a 
system to recognize close types (versions).  

All you really need to know is if a URI identifies a 
type or a set of closely related types.  For that, 
http + RDDL | catalog is ideal.  Both expectation 
and choice are accomodated and the author can 
choose the chooser of their choices, including 
themselves.  It is the expression or denotation 
of choice that counts.

Blind dates don't always get the job done.

len


From: Mark Feblowitz [mailto:mfeblowitz@f...]

The problem, I guess, goes way past "how should I label my dialect" and
encompasses "how can my various parties adapt to unavoidable changes in
dialect?"

And, oh, yeah - can namespace help with all of that?

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