Issues on the Calculation of the Process Capability Index

공정능력지수 산정에 있어 고려사항

  • Lee, Do-Kyung (School of Industrial Engineering, Kumoh National Institute of Technology)
  • 이도경 (금오공과대학교 산업공학부)
  • Received : 2014.02.17
  • Accepted : 2014.03.10
  • Published : 2014.03.31


This study is concerned with process capability index in single process. We enumerated issues on the calculation of process capability index and described the effects of these issues. We explained the development process and the reason of the representative existing process capability indices. We investigated whether the indices agree with the concept of process capability and drew the problems from those results. In addition, we proposed alternative and direction to seize the process capability necessary to the field.



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