Mastering JBoss Drools 6

When not to use a rule engine

Every project, in one way or another, can benefit from using business rules. They are highly performing, easy to change, and self-explanatory software components. However, there are a group of conditions that a project might have that would make use of business rules a bit of overkill. Some of the characteristics that make a project benefit the least from business rules are shown in the following:

• There are very few, self-contained rules involved in the project: If the business rules identified in the requirement gathering are very simple and span about one or two objects at most, we don't need a rule engine to run them. A good rule of thumb is that if we can write the business rules that we need as the pseudo code ...