OEE quantifies how well a manufacturing unit performs relative to its designed capacity, during the periods when it is scheduled to run. A well-understood tool to support continuous improvement and a commonly used key performance indicator (KPI) in conjunction with lean manufacturing efforts, OEE breaks performance into three separate but measurable components: availability, performance and quality. Each component points to an aspect of the process that can be targeted for improvement. OEE may be applied to any individual Work Center or rolled up to the department or plant levels. This tool allows for drilling down for very specific analysis such as particular part number, shirt or any of several other parameters.

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