Workflow process definitions are always executed by the Workflow Process Manager business service. So when the question arises as to how to invoke workflow processes, we can rely on our knowledge on how to invoke a business service method. In Chapter 17, we already pointed out the invocation techniques for business services. For convenience the following shortened list conveys the most important invocation mechanisms for workflow processes:
Workflow policies: These can be defined by an administrator in the Workflow Policies view of the Administration - Business Process screen. A workflow policy consists of a set of conditions and a set of actions, which are executed when all conditions are satisfied. Workflow policies require additional server-side configuration steps that are out of the scope of this book.
Runtime events: These and their associated action sets are a real-time mechanism to invoke business service methods, and subsequently workflow processes,...