Rule engine comparison
Before you decide on a rule engine for the execution of your rules, you might want to compare both engines. For each (main) rule project, you make a choice between classic rule engine and decision engine. Your choice is taken into account for compilation, rule execution, and for synchronization between Rule Designer and Decision Center.
Deprecated feature:
The classic
rule engine is deprecated in V8.9.0. This feature will be removed
in a future release of the product. See Deprecated features for migration
details.