What is a primary objective of the Six Sigma quality management system?

The primary objective of Six Sigma is to improve process quality by identifying and removing the causes of defects and minimizing variability. It aims for a process to be 99.99966% defect-free, which translates to no more than 3.4 defects per million opportunities (DPMO). This rigorous, data-driven goal is often described as approaching perfection in manufacturing and business processes. The methodology uses statistical methods to systematically improve processes toward this target level of quality and performance.

A. A balanced scorecard is a strategic performance management tool, not a primary objective of Six Sigma.

C. ISO 9000 is a separate set of quality management standards; Six Sigma's goal is not to establish them.

D. Six Sigma provides a methodology (e.g., DMAIC), but its ultimate objective is defect reduction, not just providing a roadmap.

1. Antony, J., & Banuelas, R. (2002). Key ingredients for the effective implementation of Six Sigma program. Measuring Business Excellence, 6(4), 20-27. https://doi.org/10.1108/13683040210451679. The article defines Six Sigma's goal as achieving a defect rate of 3.4 DPMO, which is a state of near-perfection (p. 21).

2. Schroeder, R. G., Linderman, K., Liedtke, C., & Choo, A. S. (2008). Six Sigma: Definition and underlying theory. Journal of Operations Management, 26(4), 536-554. https://doi.org/10.1016/j.jom.2007.06.007. The paper defines Six Sigma as a high-performance, data-driven approach to analyzing and solving root causes of business problems, with a goal of approaching zero defects (p. 536).