Principle 5 in Lean Management : Jidoka

Stop it !

Build a culture of stopping to fix problems, to get quality high the first time. Jidoka is the term for stopping the process to build quality.

The traditional culture is about getting the job done no matter what, produce large quantities and fix problems later.

The Toyota Way : every team member can stop the line. They feel the responsibility and the power. The entire line is not completely stopped because of small buffers.

When someone makes a mistake and nobody saw it, it becomes a team mistake.


It’s a light signal for help. It’s very simple like a red, green or yellow flag.

Six Sigma vs The Toyota Way

The six sigma and black belts have many complex methods. In the Toyota Way, you just have four tools :
Go and see
Analyse the situation
– Use one-piece flow and andon to surface problems
– Ask « why » five times



The content of this post is inspired by the book “The Toyota Way” – Jeffrey K. Liker

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