• To: <w3c@d...>,"'Roger L. Costello'" <costello@m...>
• Subject: RE: Fallacies of Validation ... RE: Are people really using Identity constraints specified in XML schema?
• From: "Michael Kay" <michael.h.kay@n...>
• Date: Wed, 25 Aug 2004 20:52:50 +0100
• Cc: <xml-dev@l...>
• In-reply-to: <1093459386.412cddba51a06@m...>
• Thread-index: AcSK01J+Hyh4orVaTCqxPXmZQMD2zgACX87Q

> 
> 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

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