BPMN Subprocess Process Flows

Invoked by other flows

A BPMN Call Activity provides the mechanism to invoke subprocess flows.  The Called Element attribute of the Call Activity specifies the name of the subprocess to execute.

Input and Output variable mapping

In the modeler, you can specify a list of "In Mappings".  With this, you can map execution variables from the calling flow to the subprocess.  The subprocess always has its own copy of each variable.  To transfer values back to the calling flow, you specify "Out Mappings".

May throw MSOWorkflowException

The current best practice for reporting errors from subprocess is described here: