jBPM Signal vs Message vs Event – Explained with Real Examples
Introduction While working with jBPM BPMN processes , one of the most confusing topics for developers is: ❓ When should I use a Signal, a Message, or an Event? Although they may look similar in BPMN diagrams, Signals, Messages, and Events serve very different purposes in jBPM. Misusing them can lead to: Processes not reacting Unexpected process triggers Hard-to-debug production issues In this blog, we will clearly explain: What Signals, Messages, and Events are How they behave in jBPM Key differences with examples When to use which (real-world guidance) Understanding Events in BPMN (Base Concept) In BPMN, an Event represents something that happens during a process lifecycle. Events can be: Start Events – start a process Intermediate Events – pause/wait/interrupt a process End Events – finish a process Signals and Messages are types of events , not alternatives to events. jBPM Signal – Broadcast Communication What is a Signal?...