In BPMN, gateways control process flow. A gateway tests an outcome of a preceding activity: it can not perform work itself. BPMN contains XOR or Exclusive Gateways and Parallel Gateways.
In this article a summary of all the BPMN 2.0 Level 1: Descriptive Modeling Subclass Elements. Use the menu on the right to fast forward to the element of your choice.
BPMN is a hierarchical modelling language, thanks to the inclusion of subprocesses in the language specification. In this article, you will learn how to use subprocesses using inline or child level expansion in BPMN correctly.