Decomposition is complete when the process parts are small enough to judge as to their effectiveness
and efficiency. Figure 6.9 gives examples from three levels of decomposition (subprocess,
activity, and task) of three typical business processes (procurement, development engineering, and
office administration).
Measurement data are collected according to the measurement plan to determine process effectiveness
and efficiency. The data are analyzed for effectiveness (conformance to customer needs) and
long-term capability to meet current and future customer requirements