Earned Value Analysis (EVA) is a project management method that compares a project's actual performance to its planned performance, integrating cost, schedule, and scope data into a single, comprehensive view. It helps project managers measure progress, forecast future performance based on past results, and catch problems early enough to take corrective action.
EVA is built around a few core metrics: Planned Value (PV), the budgeted cost of work scheduled to be completed; Actual Cost (AC), the total cost actually incurred; and Earned Value (EV), the budgeted cost of the work actually completed. From these, project managers calculate Cost Variance, Schedule Variance, the Cost Performance Index, and the Schedule Performance Index.
To perform EVA, a project needs a baseline plan covering scope, schedule, and budget; an accounting system that tracks actual costs; a schedule that tracks actual progress; and a system for measuring and reporting progress. With these in place, EVA answers key questions: Is the project on schedule? Is it within budget? Is it meeting its scope? What is its current status, and what outcome should be expected?
One of EVA's biggest advantages is its ability to forecast the ultimate cost and duration of a project based on current performance. If CPI or SPI drops below 1, it signals the project is over budget or behind schedule, prompting corrective action. Project managers can also calculate an Estimate at Completion using methods based on the Budget at Completion, CPI alone, or a combination of CPI and SPI.
When EVA reveals that a project is falling behind, project managers have several options to recover lost time: adding personnel or increasing work hours, prioritizing critical tasks while deferring non-critical, fast-tracking tasks that were originally sequential, delaying non-critical work to free up resources, negotiating adjusted deadlines with stakeholders, or implementing a more aggressive recovery plan if the delay is severe. Any schedule changes should be communicated clearly to the project team, stakeholders, and sponsors.
By integrating cost, schedule, and scope data into framework, Earned Value Analysis gives project managers the visibility they need to catch problems early and keep projects on track.