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Oracle SOA Suite 11g R1 Developer's Guide by Antony Reynolds, Matt Wright

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Summary

The business rules engine is built on a powerful inference engine, which it inherits from its roots in the Rete algorithm. We spent the first part of this chapter explaining how the rule engine evaluates facts against rules. The operation of the Rete algorithm can be a challenge to completely understand, so re-reading this section may be beneficial.

However, once you have an appreciation for how the rule engine works and can start "thinking in Rete", you will have a powerful tool not just for implementing complex business rules but also a certain type of service.

We demonstrated this by developing a complete ruleset to determine the winning bid for an auction. Looking at the final list of rules, we can see that we needed relatively few to ...

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