title: Criteria to Evaluate Business Rules Engines
body: <p>We are shopping for Business Rules Engines.
  We want to make our core application customizable to different customers with slightly different requirements.
  The people who would actually do the customizations are analysts. I.e. non-programmers who are technically skilled (usually have a degree in sciences).</p>
  
  <p>What are the criteria to evaluate business rules engines?
  Are there open source and comercial ones?
  What are your experiences in ease of use, documentation, support, price, etc.</p>
  
  <p>Our app is in Java.</p>