What is the primary goal of Six Sigma?

The primary goal of Six Sigma is to reduce variation within a process. The methodology is fundamentally focused on improving quality by minimizing defects and inconsistencies, which directly relates to variation. By systematically analyzing processes and using statistical tools, Six Sigma practitioners aim to identify sources of variation and implement solutions that enable more predictable and controlled outcomes. This reduction in variation leads to improvements in overall process performance, more consistent product quality, and enhanced reliability.

While eliminating waste, improving speed, and enhancing customer satisfaction are important aspects of operational excellence and can be addressed through Six Sigma initiatives, they are not the core aim of the Six Sigma methodology itself. The essence of Six Sigma lies in its rigorous analytical approaches that target process improvements primarily through the reduction of variability. By achieving this, organizations can ultimately drive better product quality, which in turn supports greater customer satisfaction.