Roots of Lean

JIT, TPS, and the Roots of Lean Six Sigma

Lean Six Sigma is a management methodology that was proceeded by the ‘The Ford System’ and the ‘Just-In-Time’ (JIT) system that were developed to increase value in automotive manufacturing. Henry Ford developed the ‘The Ford System’ for producing the Model-T by arranging all the machines, tools, employees, and products in one continuous system to eliminate activities that wasted time and resources.

Later on, Tiichi Ohno developed the JIT system using many ideas from the ‘Ford System’. The success of the JIT system inspired many companies to adopt and grow the lean management principles, including the famous Toyota Production System (TPS), developed by Taiichi Ohno and Eiji Toyoda between 1948 and 1975. Today, the principles of JIT and TPS have been adapted to suit various industries through the Lean Six Sigma method, which has become established worldwide as one of the most effective management tools for improving overall customer value and increasing efficiency.

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