Compose the Defined Process

Subprocesses are identified from the process elements in the organization's set of standard processes and the process artifacts in the organization's process asset library.

• Establish the criteria to use in identifying which subprocesses are valid candidates for use.Identification may be based on:
  • Quality and process-performance objectives
  • Existence of process-performance data
  • Product line standards
  • Project life-cycle models
  • Customer requirements
  • Laws and regulations
• Determine whether the subprocesses that are to be statistically managed, and that were obtained from the organizational process assets, are suitable for statistical management. A subprocess may be more suitable for statistical management if it has a history of:
  • · Stable performance in previous comparable instances
  • · Process performance data that satisfies the project's quality and process performance objectives
  Historical data are primarily obtained from the organization's process performance baselines. However, these data may not be available for all subprocesses.
• Analyze the interaction of subprocesses to understand the relationships among the subprocesses and the measured attributes of the subprocesses. Examples of analysis techniques include system dynamics models and simulations.
• Identify the risk when no subprocess is available that is known to be capable of satisfying the quality and process-performance objectives (i.e., no capable subprocess is available or the capability of the subprocess is not known). Even when a subprocess has not been selected to be statistically managed, historical data and process performance models may indicate that the subprocess is not capable of satisfying the quality and process-performance objectives.