RE: Automated schema migration
> Could I somehow derive a transformation between documents from this > transformation between schemas? As a general rule, the answer to such questions is usually no: making inferences about the behaviour of Turing-complete languages usually ends up being equivalent to solving the halting problem, and is therefore provably impossible. However, there might be useful special cases that can be handled using this approach - basically, if you confine yourself to a sterotyped subset of XSLT when transforming the schemas, you may be able to do some useful reasoning about it. Worth exploring, anyway. Michael Kay http://www.saxonica.com/
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