Chapter 2 Getting Started with Business Process Modeling
A process hierarchy diagram (or Functional Decomposition Diagram—FDD) is an optional diagram that allows you to identify the high-level functions of a system in a structured manner.
In the following example the top-level process Orders is decomposed into two sub-processes, Electronic Orders and Standard Orders, which is in turn decomposed. Each of these processes can be analyzed in its own business process diagram.
For more information about the process hierarchy diagram, see the Building Process Hierarchy Diagrams chapter.
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