A cost management plan establishes policies and procedures for planning, managing, spending, and controlling project costs. It determines the unit of measure, level of precision and accuracy for cost estimates, and defines organizational procedures, control thresholds, and rules for performance monitoring. The plan also describes techniques for estimating costs such as analogous estimates, parametric estimates, bottom-up estimates and cost of quality assessments. Finally, it is used to establish an authorized cost baseline and budget and to control costs by monitoring the project's status and managing changes to the cost baseline.