Overall Equipment Effectiveness - #OEE meaning OEE is a simple tool with one of the fastest returns-on-investment that helps understand the impact of productivity losses and available improvement potential Overall Equipment Effectiveness (OEE) is an industry standard, versatile measurement for production efficiency. It suits any industry or process. OEE is the result of three factors, Availability, Performance and Quality, which describe the six big losses. Together these factors form OEE = A x