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Speed, Time Availability and Quality describe all losses in a production or process line. OPR = Quality (%) x Speed (%) x Time Availability (%) It should be called OPR because it includes all possible production-related waste, not only equipment-related waste. OEE and OPR refer to the same measurement, but I use the name OPR since it better describes what is actually measured. Traditionally, this measurement is called overall equipment effectiveness (OEE). This can be measured using overall production reliability (OPR). The goal for any plant is to increase overall production reliability, meaning the maximization of output with current resources by reducing waste in equipment reliability and process reliability (the latter is often used in process industry it may be called “manufacturing reliability” in discrete manufacturing).Įquipment and process reliability jointly create reliable production. We sometimes, however, fail to define the meaning of the terms we invent. It has not.Ĭonsultants start the trends and use these words in order to sell the industry a new concept. The manufacturing and process industry may not have defined the meaning of the word reliability, but you would think the service sector would have done so by now. In several recently written mission statements, I’ve seen expressions such as “to increase profitability through increased reliability.”īut when companies are asked to define what the words mean, what reliability is and how it’s measured, it’s unusual to get a comprehensive answer. Reliability is often used by plants to define future improvement efforts and set expectations for employees and managers.