Six Sigma is a reference to a statistical measuring system, equivalent to just 3.4 defects per every million opportunities (Snee, 2003). Six Sigma is a way to increase quality by reducing errors and variation in processes. It also aims to build a culture that always strives for improvement. This management concept is often paired with Lean, another quality improvement method that aims to reduce inefficiencies and waste in organizations in order to cut costs and boost productivity.
A Sigma value or Sigma level shows how often errors are likely to occur in a process. More specifically, it stands for the number of errors per million opportunities—the higher the Sigma, the fewer the number of errors. Six Sigma is the highest level on the Sigma scale, representing just 3.4 defects or errors per one million opportunities while one Sigma is the lowest level, meaning 691,462 defects per million chances.
This online course will take you into the world of Six Sigma, including the best practices, strategies, techniques, and approaches to various Six Sigma levels.