Six Sigma

CORE DEFINITION

Six Sigma (also written as 6 sigma) is a set of tools and procedures for process improvement, and a strategy in business management. It was originally created by Motorola in 1986. Later, due to the promotion by Jack Welch, the eighth CEO of General Electric, Six Sigma became the core management philosophy of GE in 1995, and is now widely used in many industries. Six Sigma improves product quality by identifying and eliminating defects in processes, reducing variation in manufacturing and business processes. It utilizes a set of quality management methods, including statistical methods, and creates a special structure of personnel within the organization ("Black Belts", "Green Belts", etc.). Each Six Sigma project follows specific steps to achieve specific financial goals. The name "Six Sigma" comes from the production methodology, particularly the statistical model in processes. The production process can be measured by "sigma", which calculates the percentage of defect-free products.