Six Sigma is a type of quality control management that is quickly becoming an essential component of many companies who want to succeed. It seeks to improve the quality of the output of a business process - from manufacturing to transaction and from goods to services - by identifying and removing the causes of defects and minimizing instabilities in manufacturing processes and business processes. Six Sigma uses a set of quality management methods, mainly [practical/empirical and statistical methods. In many organizations, Six Sigma simply means a measure of quality that strives for near perfection. Each Six Sigma project carried out within an organization follows a defined sequence of steps and has specific value targets, for example: reduce process cycle time, reduce pollution, reduce costs, increase customer satisfaction, and increase profits..