Which metric is typically used alongside OEE to measure reliability?

Mean time between failures (MTBF) is a key metric used to measure the reliability of a system or piece of equipment in conjunction with Overall Equipment Effectiveness (OEE). MTBF provides insight into how often a system fails during operation, allowing organizations to assess the performance and reliability of their machinery.

By tracking MTBF, teams can determine the average time that elapses between failures, which can help identify patterns or recurring issues that may need to be addressed to improve uptime and overall efficiency. When used alongside OEE, which combines availability, performance, and quality into a single measure, MTBF helps organizations get a fuller picture of their equipment reliability and operational performance.

In contrast, metrics like mean time to repair (MTTR) focus more on the time it takes to fix equipment after a failure, while cost per unit produced and production yield are more concerned with financial and quality outcomes rather than reliability directly. Therefore, incorporating MTBF in analysis provides a clearer view of the reliability aspect of equipment performance when evaluating OEE.