OEE (Overall Equipment Effectiveness)

OEE (Overall Equipment Effectiveness) is a manufacturing indicator commonly calculated as availability multiplied by performance and quality. It shows how much of planned production time produced good output at the defined ideal rate. The figure depends on agreed definitions for planned time, stops, ideal cycle and good units, so values from different lines or companies may not be comparable. OEE does not explain root cause and should not become a target that encourages hiding downtime or defects. Teams use its components and loss categories to focus investigation, then verify improvement with operational evidence. Data collection, reason codes and change control matter as much as the formula. A rising OEE is useful only when safety, quality, demand and maintenance outcomes remain acceptable.