Event Driven Architecture and Business Rules (Opinion request)

[Saleem Jeelani <saleemjeelani@xxxxxxxxx>]

Hi All:

Lately I have been doing some reading related to Event
Based programming and integration of Business Rules
(something akin to JSR 940).  
The Event Driven Part is fine, I am wondering how the
business rules component actually work in real time
without an entire re-write of all your applications
and models.
The tools I researched fell in two categories, open
source Java rules engine - Drools (http://drools.org/)

and a commercial offering from FairIsaac -
BlazeAdvisor
(http://www.fairisaac.com/Fairisaac/Solutions/Enterprise+Decision+Management/Business+rules/).

Some other useful sites are 
Microsoft Biztalk
http://www.brcommunity.com
http://www.alphaworks.ibm.com/tech/commonrule

I would love to hear experiences, thoughts, one way or
the other on Event drive  architectures or business
rules.  


Thanks,

Saleem


                
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