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   Re: [xml-dev] Flexible Schemas (was RE: [xml-dev] The task to be solved

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Hi Leigh,

Leigh Dodds wrote:

> As I said in my previous message, I don't see this as a problem with RDDL. 
> Instead I think it suggests that our approach to writing *schemas* isn't 
> flexible enough to deal with documents containing an arbitrary mix of 
> namespaces. I should state up front I don't have any answers here, 
> I'm just interested in a general discussion.

It's a very good point and I think that it's even much more than a 
matter of writing flexible schemas (schemas are not the center of the 
universe ;=) )!

What the use of writing flexible schemas if the applications are not 
also flexible and open to accept the same range of documents than those 
flexible schemas?

At the end of the day, it's probably even more than a matter of writing 
flexible applications, it's a different perspective on what's a XML 

There are applications for which a XML document is a transient stream 
used as a closed exchange between two points for which it's OK to use 
closed schemas.

Beyong flexible schemas and flexible applicarions, what we need is 
*flexible thinking* and my strong feeling is that all the other 
applications should look at XML documents as sources of information open 
and imprevisible in which they fetch what they need and leave what they 
don't need right now for potential later use...

This leads to accept and publish more information in XML documents than 
you need it short term and it's probably the most fundamental difference 
between being application and document oriented (more fundamental than 
discussing over the legitimity of mixed contents)!


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Eric van der Vlist       http://xmlfr.org            http://dyomedea.com
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