How is six sigma is defined ssd1?

Six Sigma is a data-driven methodology aimed at improving processes by reducing variation and defects. It employs a set of quality management tools and techniques to identify and eliminate the causes of errors, thereby enhancing overall efficiency and effectiveness. The term "Six Sigma" refers to a statistical measure that aims for a process to produce no more than 3.4 defects per million opportunities. This approach emphasizes a strong focus on customer satisfaction and continuous improvement.