Start events define where a Process or Sub Process starts.

The process engine supports different types of start events:

• Blank
• Timer
• Message
• Signal
• Conditional

The engine requires at least one start event to instantiate a process. There can be a maximum of one blank or timer start event per process definition. There can be multiple message or signal start events.

Asynchronous Instantiation

A start event may be declared as asynchronous with cadenzaflow:asyncBefore="true"

<startEvent id="startEvent" cadenzaflow:asyncBefore="true" />

This will ensure that the process engine creates a process instance when the process is instantiated, but the execution of the initial activities is not done synchronously. Instead, a job is created and asynchronously processed by the job executor. See the Asynchronous Continuations section of the User Guide for some background information.

CadenzaFlow Extensions