Exam CSCP topic 1 question 721 discussion

*C. Keeping process variability within limits.** **Explanation:** - **Six Sigma** focuses on reducing process variability and defects by using statistical methods to achieve near-perfect quality (3.4 defects per million opportunities). Its core goal is to maintain tight control over processes to ensure consistency and predictability. - **Lean manufacturing** primarily aims to eliminate waste (e.g., overproduction, waiting, and unnecessary inventory) and improve efficiency in processes. - **Just-in-time (JIT)** focuses on reducing inventory levels and producing only what is needed, when it is needed, to minimize waste and costs. While **designing quality into products and processes (D)** is a shared goal across all three methodologies, the **emphasis on controlling process variability** is a defining characteristic of Six Sigma. This makes **C** the most distinguishing factor.

C is the correct answer

A key concept distinguishing six sigma from lean manufacturing and just-in-time (JIT) concepts is: A. reducing waste. B. eliminating inventories. C. keeping process variability within limits. D. designing quality into products and processes.