DMN vs Drools – Which Rules Engine Should You Use and When?
DMN vs Drools – Which Rules Engine Should You Use and When? (Complete Comparison Guide) In the Java BPM and rules ecosystem, DMN and Drools are two powerful but very different ways to implement business rules. Many teams ask: Should we use DMN or Drools ? Can they be used together? Which one is better for business users? Which one scales better for complex logic? This blog gives a clear, no-confusion answer with examples, use cases, and a comparison table . ⭐ 1. What is DMN? DMN (Decision Model and Notation) is a standard (OMG) for modeling and executing business decisions . Key characteristics of DMN: ✔ Visual, business-friendly ✔ Decision tables, literal expressions, FEEL ✔ Clear separation of process and decision ✔ Easy to audit and explain ✔ Designed for business users + developers Typical DMN use cases: Loan approval Eligibility checks Pricing rules Risk categorization Compliance decisions ⭐ 2. What is Drools? Drools is a pow...