page_title: Overall equipment effectiveness
section_title: "Six Big Losses"
hierarchical_section_title: Overall equipment effectiveness / "Six Big Losses"
caption_attribution_description: English: Example of OEE calculation and further break down to Six Loss analysis for allocating of production loss
context_page_description: Overall equipment effectiveness is a measure of how well a manufacturing operation is utilized 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 of 100% means that only good parts are produced, at the maximum speed, and without interruption.
  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
  Total effective equipment performance is a closely related measure which quantifies OEE against calendar hours rather than only against scheduled operating hours. A TEEP of 100% means that the operations have run with an OEE of 100% 24 hours a day and 365 days a year.
  The term OEE was coined by Seiichi Nakajima. It is based on the Harrington Emerson way of thinking regarding labor efficiency. The generic form of OEE allows comparison between manufacturing units in differing industries.
context_section_description: To be able to better determine the sources of the greatest loss and to target the areas that should be improved to increase performances, these categories (Availability, Performance and Quality) have been subdivided further into what is known as the ‘Six Big Losses’ to OEE.
  These are categorized as follows:
  The reason for identifying the losses in these categories is so that specific countermeasures can be applied to reduce the loss and improve the overall OEE.
caption: Example of OEE and Six Loss calculation
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