Use Organizational Process Assets for Planning Project Activities

• Base the activities for estimating and planning on the tasks and work products of the project's defined process. An understanding of the relationships among the various tasks and work products of the project's defined process, and of the roles to be performed by the relevant stakeholders, is a basis for developing a realistic plan.
• Use the organization’s measurement repository in estimating:
  • Using appropriate historical data from this project or similar projects
  • Accounting for and recording similarities and differences between the current project and those projects whose historical data will be used
  • Independently validating the historical data
  • Recording the reasoning, assumptions, and rationale used to select the historical data
• Examples of parameters that are considered for similarities and differences include:
  • Work product and task attributes
  • Application domain
  • Design approach
  • Operational environment
  • Experience of the people
  Examples of data contained in the organization’s measurement repository include:
  • Size of work products or other work product attributes
  • Effort
  • Cost
  • Schedule
  • Staffing
  • Defects