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Chapter 1
Introduction: iIS Process
Management
iIS process system management is largely devoted to managing iIS process engines
and the functions they perform.
This chapter provides a high level description of what an iIS process engine is and
what it does. It describes the relationship of the engine to other parts of the iIS
system and describes its component parts.
This chapter also discusses the tasks required of system managers and the tools
they use to perform these tasks.
What Is an iIS Process Engine?
An iIS process engine is the heart of an iIS system, shown in
Figure 1-1 on page
30,
reproduced from the iIS Process Development Guide.
The engine controls and manages business processes from beginning to end,
coordinating the work of the different resources that perform the activities defined
in each process instance.
At each stage of a process's execution, the engine evaluates whether an activity is
ready to be performed and, if so, assigns that activity to the appropriate resources.
When an activity is completed, the engine routes the work to the next activity or set
of activities.
The engine knows how to manage the flow of a process because it is programmed
to control and track that process. The program that the engine executes is an iIS
process definition. The process definition is created in the iIS Process Definition
Workshop and is then registered with the engine. For information on process
definitions, see the iIS Process Development Guide.
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