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Muri is a Japanese word meaning "unreasonableness; impossible; beyond one's power; too difficult; by force; perforce; forcibly; compulsorily; excessiveness; immoderation", [1] and is a key concept in the Toyota Production System (TPS) as one of the three types of waste (muda, mura, muri). [2] A direct example of Muri is asking workers to stay ...
There are two types of muda: [4] Muda type I: non value-adding, but necessary for end-customers. These are usually harder to eliminate because while classified as non-value adding, they may still be necessary. Muda type II: non value-adding and unnecessary for end-customers. These contribute to waste, incur hidden costs and should be eliminated.
Mura is a Japanese word meaning "unevenness; irregularity; lack of uniformity; nonuniformity; inequality", [1] and is a key concept in the Toyota Production System (TPS) as one of the three types of waste (muda, mura, muri). [2]
The most significant effects on process value delivery are achieved by designing a process capable of delivering the required results smoothly; by designing out "mura" (inconsistency). It is also crucial to ensure that the process is as flexible as necessary without stress or "muri" (overburden) since this generates "muda" (waste).
Production leveling, also known as production smoothing or – by its Japanese original term – heijunka (平準化), [1] is a technique for reducing the mura (unevenness) which in turn reduces muda (waste). It was vital to the development of production efficiency in the Toyota Production System and lean manufacturing. The goal is to produce ...
While lean manufacturing focuses on optimization of the production stream and removal of wastes (commonly referred to as muda, mura, and muri) once the value stream has been created, Lean Design ® (Munro & Associates) concerns itself with methods and techniques to create a lean solution from the start, resulting in more value and fewer wastes ...
"Lean" is a systematic method for the elimination of waste ("Muda") within a manufacturing system. Lean also takes into account waste created through overburden ("Muri") and waste created through unevenness in work loads ("Mura"). Working from the perspective of the client who consumes a product or service, "value" is any action or process that ...
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