Earned Value Management (EVM) is a project performance measurement methodology that integrates scope, schedule, and cost data to provide objective assessments of project health and predictive forecasting capabilities. Developed from the U.S. Department of Defense's Cost/Schedule Control Systems Criteria (C/SCSC) in 1967 and standardized through ANSI/EIA-748, EVM enables project managers to quantify work performed against planned work and actual expenditures, revealing both schedule and cost variances early enough to enable corrective action. Unlike traditional project tracking that treats cost and schedule separately, EVM uses a common unit of measure—typically dollars—to answer three fundamental questions: What did we plan to accomplish? What did we actually accomplish? What did it cost us? This unified framework transforms subjective progress assessments into quantitative performance indices (CPI, SPI) and projections (EAC, ETC), making EVM the industry standard for performance measurement on complex government contracts, large-scale construction projects, and enterprise initiatives requiring rigorous cost-schedule integration and accountability.