Use organizational process assets and the measurement repository for estimating and planning project activities.


Refer to the Organizational Process Definition (OPD) (CMMI-DEV) process area for more information about establishing organizational process assets.

When available, use results of previous planning and execution activities as predictors of the relative scope and risk of the effort being estimated.

Example Work Products

  1. Project estimates
  2. Project plans


1. Use the tasks and work products of the project’s defined process as a basis for estimating and planning project activities.

An understanding of the relationships among tasks and work products of the project’s defined process, and of the roles to be performed by relevant stakeholders, is a basis for developing a realistic plan.

2. Use the organization’s measurement repository in estimating the project’s planning parameters.


This estimate typically includes the following:
  • Appropriate historical data from this project or similar projects
  • Similarities and differences between the current project and those projects whose historical data will be used
  • Validated historical data
  • Reasoning, assumptions, and rationale used to select the historical data
  • Reasoning of a broad base of experienced project participants


Examples of parameters that are considered for similarities and differences include the following:
  • Work product and task attributes
  • Application domain
  • Experience of the people
  • Design and development approaches
  • Operational environment


Examples of data contained in the organization’s measurement repository include the following:
  • Size of work products or other work product attributes
  • Effort
  • Cost
  • Schedule
  • Staffing
  • Response time
  • Service capacity
  • Supplier performance
  • Defects