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Re: [xml-dev] A design problem

David Carver wrote:
> LAKKAM Vinay (AXA-I) wrote:
>> We have a requirement to build a rules engine which will be accessed 
>> very frequently(almost after every screen) to get a rule result. The 
>> rules engine will have about 100 rules, and when we pass the input 
>> information it will process again all the rules and returns the matched.
If the rules only require simple logic (no back-tracking, complex 
chaining, etc), and if you are just wanting to identify documents with 
certain patterns, then Schematron is the simplest thing to use.

Proprietary rules language tend to use higher-order logics or have 
domain-specific capabilities; they need advanced features to justify a 
price. Schematron just uses XPath.

Rick Jelliffe

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