> And one more time I disagree with this. The problem is not as bad as 
> you make it out. You do not need to say that the input must be 
> derived from some source XML document. You simply need to state that 
> when the input is derived directly from a source XML document, then 
> the data model is precisely specified. 

I have actually been in favour of defining one specific route from a
source XML document to a data model object that all processors must
support, but I haven't persuaded my colleagues to accept the principle,
let alone the details of what that route should be.

Michael Kay
Software AG
home: Michael.H.Kay@xxxxxxxxxxxx
work: Michael.Kay@xxxxxxxxxxxxxx 


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