Process capability indices (PCIs) have been widely used in manufacturing industries to provide a quantitative measure of process potential and performance to meet the specification limits on quality characteristics. The most of existing PCIs are concerned with a single variable. But, in many cases, people want to express a integrated PCI which includes a couple of sequential processes. In this paper, we analyzed the characteristics of system PCIs such as Cp(f), SCpk, SCpsk, Ctpsk(m) and SCpm(m).

1. 서 론
 2. 개별 공정능력지수
 3. 시스템 공정능력지수
 4. 시스템 공정능력지수의 특성 비교 및 결론
 Acknowledgement
 References

• 이도경(금오공과대학교 산업공학부) | Dokyung Lee Corresponding Author