If we need to use plugaable rule engine, what are all the open standards related to it.
How to migrate rule engine “without rewriting rules” for every platform?
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If we need to use plugaable rule engine, what are all the open standards related to it.
How to migrate rule engine “without rewriting rules” for every platform?
JSR-94 is the only standard in wide use but, sadly, won’t help you with rewriting rules as it is only a standard for calling the engine. If you want to avoid re-writing rules while either supporting multiple rule engines or moving from one to another then you need to look into a couple of other standards:
Production Rule Representation (PRR) is a standard under development at OMG. This defines the basic structure of rules and rulesets in rule engines so that an XML structure can be passed around containing rules. This is in beta and is being supported by most of the major rule vendors (though I don’t think any have released support yet).
Rule Interchange Format (RIF) is a standard under development at W3C. This is being kept synchronized with PRR and is focused on the syntax of the rules – how to specify conditions etc. This is also widely supported but similarly support is not yet released.
The idea, and the reason the two teams work together, is to allow rules to be structured according to PRR (allowing them to be shared between modeling tools and rule engines) while exporting the rule engine-specific syntax to RIF so that specific rules can be moved from syntax to syntax.