Earned value management (EVM) assesses a project's schedule and cost performance. It is based on the concept that work completed delivers value equal to the budget spent. Reasons EVM is not used include projects being too complex, lack of requirements, and inaccurate plans. EVM requires a baseline budget and integrated work breakdown structure, schedule, and budget. Formulas like schedule variance, cost variance, schedule performance index, and cost performance index are used to analyze performance. A scenario demonstrated calculating EVM metrics for a fence building project. The document discussed interpreting EVM data and considering factors like physical measurement and percentage complete for determining earned value.