• To: <xml-dev@l...>
• Subject: Meta-validation Re: dynamically generated XML Schema?
• From: "TAN Kuan Hui" <kuanhui@x...>
• Date: Fri, 5 Nov 2004 10:39:56 +0800
• Cc: "Michael Kay" <michael.h.kay@n...>,"'Burak Emir'" <Burak.Emir@e...>,"'Chizzolini Stefano'" <chist@c...>,"Nathan Young" <natyoung@c...>
• Organization: Xemantics Software Pte Ltd

Curiously, has anyone attempted to do meta-validation to
realize conditional validation ? (much along the same line of 
thought as template metaprogramming in C++ to realize 
conditional compilation) 

What I mean is that can conditional validation be facilitated 
through mechanisms such as "Substitution Groups" 
and/or "xsi:type" ?

If, workflow/application states infoset are encapsulated as 
elements with different specific types at different point
of the workflow/process rather than its state information being
encapsulated in the same type regardless of its processing
state, then I think, we can easily achieve conditional validation 
with the current xsd semantics. 

Any thoughts on this meta-validation approach versus say
dynamic schemas ?

Kuan Hui

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