Re: [rules-users] What is inference and how does it facilitate good rule design and maintenance

Leonardo Gomes wrote: "In this scenario, aren't we moving logic that would be better expressed in a declarative form (drl) to facts that are coded in java?" That facts are coded in java is incidental there use is still very declarative. Imperative is "how" and often procedural in nature. By using the inferred fact the de-coupling makes sure it's not procedural, the age policy rules do not invoke the card issuing rules. Secondly the encapsulation and the abstraction makes sure the card issuing rules do not know the "how" someone is an adult, they have just declaratively been told that they are.