CPIM Practice Exam

Which system is focused on reducing defects by minimizing variation?

1. Lean

2. Six Sigma

3. ERP system

4. Theory of Constraints

The correct answer is: Six Sigma

The focus of Six Sigma is on reducing defects in processes by minimizing variation. This approach employs a structured methodology, often utilizing statistical tools and techniques, to identify the root causes of defects and implement solutions that enhance quality and performance. Six Sigma's goal is to achieve a process capability that results in very few defects—ideally no more than 3.4 defects per million opportunities—by standardizing processes and emphasizing continuous improvement. In contrast, Lean is aimed primarily at increasing efficiency and eliminating waste, rather than specifically targeting variation and defects. An ERP system is a management tool that integrates various business processes and aids in decision-making but does not specifically focus on reducing defects through variation minimization. The Theory of Constraints, while focused on improving overall system performance by identifying and managing bottlenecks, does not specifically address defect reduction through control of variation as Six Sigma does.