Glossary

OEE, or Overall Equipment Effectiveness, is a standard metric used to measure manufacturing productivity. It evaluates how effectively a production process is utilized by breaking performance down into three key factors: Availability, Performance, and Quality. OEE helps identify production losses, track improvement over time, and benchmark operational efficiency across equipment and processes.

OEE Quality is one of the three core factors of Overall Equipment Effectiveness. It measures the percentage of good parts produced without defects, reflecting the impact of quality loss in the production process. Quality loss includes all parts that do not meet quality standards, such as scrap or rework. This metric is typically calculated by tracking the number of Reject Parts during production.

OEE Performance is one of the three key components of Overall Equipment Effectiveness. It measures how efficiently a machine or process runs compared to its maximum potential speed. Performance loss includes slow cycles and small stops. This metric is typically calculated by comparing the Actual Cycle Time to the Ideal Cycle Time, helping identify speed-related inefficiencies in production.

OEE Availability is one of the three core components of Overall Equipment Effectiveness. It measures the percentage of scheduled production time that is actually available for operation. Availability loss includes both unplanned stops (e.g., breakdowns) and planned stops (e.g., maintenance). Tracking these events is essential for improving machine uptime and overall productivity.