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From Vijay K Pandey <VPan...@mdes.ms.gov>
Subject Drrols 5 Expert --> Sequential vs Inference
Date Fri, 14 Aug 2009 22:36:16 GMT

We have around 3500 business rules and rules are mainly look up value based or based on the
associated data in the RDBMS.

There are around 90% processes where we only need sequential rules check, the other 10% of
processes requires the inference capability.

My questions:

a)    Which is the best way to go for this - should we set up all the rules as inference through
stateful session or segregate 90% as sequential and others as inference. Will this segregation
going to give better performance in Drools 5 and later?

b)    Lots of our LHS depends on the data from RDBMS - we insert 1 fact - then make use of
"from/collect" to get hold of various associated data ---then do some checks on the data fetched
from RDBMS -- so is it better to program them in java directly or as sequential rules?

Any guidance will be helpful?



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