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The PDF likely traces Kanban from its primitive state (1940s: "just-in-time" for looms) through to a sophisticated information network: the evolution of a manufacturing system at toyota pdf
The Key PDF You Must Find: "The Evolution of a Manufacturing System at Toyota" by Fujio Cho, T. Fujimoto, and others (1999, International Journal of Production Research). This paper explicitly states: "TPS is a system for making people think. The tools are merely the skeletons." Book Information: 4
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