What Is Six Sigma ? Six sigma has gained an avid following among executives manages for its ability to reduce cycle time, eliminate product defects, and dramatically increase customer satisfaction. But six sigma can't work without widespread employee involvement and commitment. What is six Sigma? Outlines, for employees have in a six sigma initiative, and how six Sigma can benefit them. This concise introduction explains what questions to ask when Six Sigma is first introduced in an organization then answers those questions in a straightforward and easy-to-read style.