As GE's CEO, in 1995 Jack Welch made it central to his business strategy. Honeywell and General Electric were also early adopters of Six Sigma. In 2005 Motorola attributed over $17 billion in savings to Six Sigma. Service Mark 1,647,704) on December 28, 1993, it registered Six Sigma as a trademark.
It registered Six Sigma as a service mark on J( U.S. Motorola pioneered Six Sigma, setting a "six sigma" goal for its manufacturing business. The maturity of a manufacturing process can be described by a sigma rating indicating its yield or the percentage of defect-free products it creates-specifically, to within how many standard deviations of a normal distribution the fraction of defect-free outcomes corresponds. The term Six Sigma originates from statistical modeling of manufacturing processes. Each Six Sigma project follows a defined methodology and has specific value targets, such as reducing pollution or increasing customer satisfaction. This is done by using empirical and statistical quality management methods and by hiring people who serve as Six Sigma experts. Six Sigma strategies seek to improve manufacturing quality by identifying and removing the causes of defects and minimizing variability in manufacturing and business processes.
It was introduced by American engineer Bill Smith while working at Motorola in 1986. Six Sigma ( 6σ) is a set of techniques and tools for process improvement.
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