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every Toyota team member goes through a basic set of development steps at each stage of her development, following the process of basic learning by copying exactly (shu), mastering the basics so that they become second nature (ha), and becoming so masterful at the basics that she can go beyond these and improvise (ri).
You do not simply, mindlessly, implement the best practices. You have to think deeply about your condition. If the “best practice” seems like a useful countermeasure for your problem, you should learn from the best practice; however, what may have worked in some other place may not work for you without adjustment and even further improvement.
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Toyota’s success, in short, is not rooted in its application of a standard “lean” methodology to manufacturing, nor can it be found in any internally implemented equivalent of Six Sigma. Instead, it is rooted in its leaders. More specifically, it can be found in the approach that a Toyota leader takes, seeing self-development and training others as the only possible path, not only for finding the right solution for the problem at hand, but for constantly and consistently improving performance day after day.
Continuous improvement means getting better every day and is the driver for building a sustainable enterprise. Only those at the gemba can understand the problems fast enough to react quickly. Continuous improvement depends on a different paradigm of the role of the human — all humans are problem detectors and problem correctors — thinking scientifically.