What is the difference between BPMN and UML?

BPMN (Business Process Model and Notation) and UML (Unified Modeling Language) are both modeling languages used to represent systems and processes visually, but they have different focuses and purposes. BPMN is specifically for modeling business processes with a simple and intuitive notation. At the same time, UML is a general-purpose modeling language for complex systems, including software and business processes, with a wider range of diagrams and a more complex notation.