Just-in-time (JIT) manufacturing is not just a method of reducing inventory. It is embraced as a philosophy that emphasizes eliminating waste from all processes. Inventory is simply a buffer that protects a process against unreliability (such as poor supplier delivery or machinery that breaks down frequently). Reducing inventory levels without correcting the problems that create unreliability will stop production. Constructing a reliable system will eliminate the need for an inventory buffer.

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