Toyota Production System(TPS) - Toyota's management philosophy and practices that was developed by Taiichi Ohno, Shigeo Shingo and Eiji Toyoda between 1948 and 1975. The main goal is to design processes to avoid overburden (muri) and inconsistency (mura), and to eliminate waste (muda)
Muri - Over utilization of systems
Mura - Inconsistency or deviation from the desired specs.
Muda - waste - Inefficient use of the resources(raw materials and human resources)
These three can be reduced or eliminated using the following concepts.
Kaizen - Continuous Improvement - innovate and evolve
Genchi Genbutsu - (Go and see) go to source of the problem to find the facts and make correct decision. - similar to "Management by Wandering around" idea of Peters and Waterman
Jidoka or Autonomation(automation with human intelligence).It is a quality control process that involves following principles
Detect the abnormality.
Stop.
Fix or correct the immediate condition.
Investigate the root cause and install a countermeasure.
It is different from full automation - which does not involve human intervention as pure automation would be able to detect and correct its own problems - which might be expensive.
Andon - a system to notify a quality or process problem - part of Jidoka
Poka-Yoke - originates from Baka-Yoke - meaning Fool proofing or fail safing
Kanban - a scheduling system that tells you what to produce, when to produce it, and how much to produce. One of the ways to achieve Just-In-Time production.
Toyota Production System is considered to be the Just-In-Time production system.
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