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   Re: [xml-dev] Fun With Schemas

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Quoting Bob Foster <bob@objfac.com>:

> Generating instances from schemas usually just produces one of the
> infinite number of instances restricted by certain trivial parameters. I
> don't know of an example where meaningful instances are generated.
> If a generated document changes automatically depending on the schema it
> finds at the time of generation yet somehow contains the same
> "information", there must be a model of the document that is independent
> of the schema, e.g., something like an ER model. Then the model must be
> populated: this concrete entity has that relationship to these other
> concrete entities, etc. Then there must be a mapping from the abstract
> document model to the elements and attributes used in the schema. When
> the schema changes, the mapping must change in concert (and there must
> be a way to prevent changes to the schema that violate the abstract
> document model, e.g., changing an unbounded relationship to a bounded one).

Sounds simple in theory...

debugging the kinks out of that one would be the real fun.. I
hope it's written in python or perl.. if it's in C I think
the local pizza shop might be the only real winner... :-)

> After that, piece of cake. ;-}

I think anybody would deserve the cake if they survived that...

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