How does Six Sigma aim to improve quality?

Six Sigma aims to improve quality primarily by removing defects and their root causes from processes. This methodology focuses on a quantitative approach to identify and eliminate errors to enhance overall performance. The core principle of Six Sigma is to achieve near-perfect processes by understanding the sources of variability and addressing them effectively.

By employing statistical methods and data analysis, Six Sigma practitioners seek to measure and improve process capabilities, leading to a reduction in defects and variations. This focus on quality improvement not only enhances customer satisfaction but also drives efficiency, ultimately resulting in a higher level of operational excellence.

Other approaches, while they may contribute to quality, do not define the central aim of the Six Sigma methodology with the same precision as removing defects and their causes does. For instance, while reducing waste and reorganizing workflow can support the overall goal of process improvement, they do not encapsulate the primary focus on defect elimination that characterizes Six Sigma.