Overall Equipment Effectiveness(OEE) is a measure of how well a manufacturing operation is utilized (facilities, time and material) compared to its full potential, during the periods when it is scheduled to run. It identifies the percentage of manufacturing time that is truly productive. An OEE is a dashboard that shows the total performance of a discrete or continuous process. OEE is maximized at 100% and means that only good parts are produced (100% quality), at the maximum speed (100% performance), and without interruption (100% availability).
Measuring OEE is a manufacturing best practice. By measuring OEE and the underlying losses, important insights can be gained on how to systematically improve the manufacturing process. OEE is an effective metric for identifying losses, bench-marking progress, and improving the productivity of manufacturing equipment (i.e., eliminating waste).
OEE has been used as the prime manufacturing metric for decades. Historically, OEE monitoring used manual data collection directly from the machines on a batch basis and calculated the metric. In itself, OEE is a reactive dashboard that monitors the past and historical performance - the true power of OEE is to guide to implement use cases that improve the components of OEE - the deployment of predictive maintenance to improve availability, or quality control leveraging computer vision to improve quality that are predictive in function.
