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WHAT IS SIX SIGMA?



Six Sigma is a business management approach that focuses on continuous improvement and the elimination of defects in processes, products, or services. The goal of Six Sigma is to achieve a level of quality that results in no more than 3.4 defects per million opportunities (DPMO).

Six Sigma is implemented through a set of principles and practices, including:


  • Data-driven decision making: Six Sigma relies on data and statistical analysis to identify and solve problems and measure progress.

  • Define, measure, analyze, improve, control (DMAIC): Six Sigma uses a structured, five-step process to identify and address problems and inefficiencies in processes, products, or services.

  • Design for Six Sigma (DFSS): A method used to design processes, products, or services that meet Six Sigma quality levels from the outset.

  • Lean Six Sigma: A hybrid approach that combines Six Sigma with Lean principles, which focus on minimizing waste and maximizing value.


Six Sigma is often used in conjunction with other quality improvement approaches, such as Total Quality Management (TQM) and Kaizen. It has been applied in various industries and has been credited with improving quality, customer satisfaction, and financial performance in organizations that have implemented it.

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