Which of the following best describes Six Sigma?

Six Sigma is best described as a structured approach to process improvement. It utilizes data-driven techniques and statistical methods to identify defects in a process and improve overall quality. This approach emphasizes the importance of measuring and analyzing the performance of processes to ensure they are optimized and operate at high levels of efficiency. By using tools such as DMAIC (Define, Measure, Analyze, Improve, Control), organizations can systematically improve their processes to reduce variability and enhance product quality.

While it can lead to cost reduction and increased production speed indirectly by improving quality and reducing waste, these aspects are not the core definition of Six Sigma. It is primarily focused on eliminating defects and increasing process consistency, making it a robust framework for enhancing overall operational performance.