Economic performance of an EWMA chart for monitoring MMSE-controlled processes
- Authors
- 이재헌; 양완연
- Issue Date
- 2004
- Publisher
- 한국데이터정보과학회
- Keywords
- Engineering process control; EWMA control chart; Expected cost; MMSE-controlled process; Statistical process control
- Citation
- 한국데이터정보과학회지, v.15, no.2, pp 285 - 295
- Pages
- 11
- Journal Title
- 한국데이터정보과학회지
- Volume
- 15
- Number
- 2
- Start Page
- 285
- End Page
- 295
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/28703
- ISSN
- 1598-9402
- Abstract
- Statistical process control(SPC) and engineering process control(EPC) are two complementary strategies for quality improvement. An integrated process control(IPC) can use EPC to reduce the effect of predictable quality variations and SPC to monitor the process for detection of special causes. In this paper we assume an IMA(1,1) model as a disturbance process and an occurrence of a level shift in the process, and we consider the economic performance for applying an EWMA chart to monitor MMSE-controlled processes. The numerical results suggest that the IPC scheme in an IMA(1,1) disturbance model does not give additional advantages in the economic aspect.
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