Certified Healthcare Leader (CHL) Exam 2026 – 400 Free Practice Questions to Pass the Exam

The focus of Six Sigma is on improving the quality of process outputs by identifying and removing the causes of defects and minimizing variability in manufacturing and business processes. This technique employs a set of quality management methods, including statistical methods, and creates a special infrastructure of people within the organization.

The term "Six Sigma" refers to a statistical measure that represents the capability of a process to perform defect-free work. Achieving Six Sigma means that a process produces fewer than 3.4 defects per million opportunities, which is close to perfection. The methodology is data-driven and concentrates on understanding and controlling processes to ensure consistent and predictable results.

While Total Quality Management, Kaizen, and Quality Assurance also focus on quality improvement, they do not specifically target the high level of precision associated with Six Sigma. Total Quality Management takes a more holistic approach to long-term success through customer satisfaction, Kaizen emphasizes continuous improvement, and Quality Assurance focuses on maintaining the quality of outputs. These techniques contribute to quality improvements but are not explicitly designed to reach the near perfection that is characteristic of Six Sigma.