RE: [xml-dev] Fallacies of Validation ... RE: [xml-dev] Are people really using Identity constraints specified in XML schema?

["Michael Kay" <michael.h.kay@ntlworld.com>]

> 
> It would be very useful if we could have a simple example 
> that shows how
> several schemas might be employed, rather than a single schema.  Could
> someone provide an example?  

One example I am thinking of is where a document is gradually built up in
the course of a workflow. At each stage in the workflow the validation
constraints are different. You can think of each schema as a filter that
allows the document to proceed to the next stage of processing.

Michael Kay