ICICI Bank-Business Rules Engine

The Business Rules Engine (BRE) ensures policy compliance by putting
deviation and mitigants into the system. Blaze from Fairlsaac is the product
that has been implemented for BRE, and it runs runs on a Pramati server in an
Active-Active cluster. The rules are written by business-in-development
interface, and are tested for accuracy by uploading test cases within the
application.

The rules are then deployed in a UAT environment, which is interfaced with
various applications like the Application Processing System, etc, to check
results. Once the working of the rule is confirmed, it is deployed in the form
of an XML file.

Any changes to these XML files triggers the BRE to refresh the cache,
allowing hot deployment. BRE nullifies the risk of a physical copy being leaked
out to competitors.

It ensures that all policies are directly fed into the engine, and that only
a handful of people responsible for maintaining the policy know about it.

BRE enables businesses to change the policy themselves in real-time without
the intervention of any vendor, thereby reducing the time taken to change the
policies, and keeps policies within a closed user group.