The Performance Measurement Baseline (PMB) is the integrated scope, schedule, and cost baselines that serve as the foundation for measuring, managing, and controlling project execution. It provides a reference point against which actual performance is compared to assess progress and identify variances.
The PMB is a key component of earned value management (EVM) and supports accurate forecasting and decision-making throughout the project lifecycle.
Key Characteristics
- Integrated View – Combines scope, time, and cost into a single measurable baseline
- Reference Point – Used for variance analysis during execution
- Authoritatively Approved – Established and maintained under formal change control
- Supports EVM – Enables earned value calculations like CV, SV, CPI, SPI
Example Scenarios
- The PMB shows a planned cost of 600K, indicating a cost overrun
- Schedule variance is identified by comparing planned vs. actual task completion dates
- A scope change request triggers an update to the PMB through formal approval
Why Performance Measurement Baseline Matters
- Enables Performance Tracking – Measures cost and schedule performance objectively
- Supports Decision-Making – Informs corrective actions when deviations occur
- Strengthens Governance – Provides a controlled reference for change management
- Drives Forecast Accuracy – Allows projection of future performance based on current trends
See also: Baseline, Cost Baseline, Schedule Baseline, Scope Baseline, Earned Value Management (EVM).