Use organizational process assets and the measurement repository for estimating and planning work activities.
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
- Work estimates
- Work plans
1. Use the tasks and work products of the defined process for the work as a basis for estimating and planning work activities.
An understanding of the relationships among tasks and work products of the defined process for the work, 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 work planning parameters.
- Appropriate historical data from this work or similar work
- Similarities and differences between the current work and work from which historical data will be used
- Validated historical data
- Reasoning, assumptions, and rationale used to select the historical data
- Work product and task attributes
- Application domain
- Service system and service system components
- Operational or delivery environment
- Experience of the people
- Size of work products or other work product attributes
- Response time
- Service capacity
- Supplier performance