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- 저자 : ( Agung Sutrisno ) (검색결과 2 건)
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SWOT분석을 토대로 한 서비스 FMEA에서의 개선조치전략
( Agung Sutrisno ),권혁무 ( Hyuck Moo Kwon ) 한국품질경영학회 2012 품질경영학회지 Vol.40 No.1
Service FMEA may yield several possible corrective actions for each failure mode with large RPN. Corrective actions for each service failure are usually interrelated with the customers and environmental elements of the service system. SWOT analysis can provide an effective way to analyze the inner and outer environmental impacts for each corrective action. In this paper, we suggest a way for selecting and ranking corrective strategy in service operation based on SWOT analysis. Every candidate of corrective action strategy is ranked and evaluated on the basis of the impact factors of the SWOT variables, correlations between possible corrective actions and SWOT variables, and RPNs of service failures. The most desirable set of corrective actions is selected considering the preference score of each corrective action, required resources and budgetary allowance. The proposed methodology is demonstrated with an illustrative example.
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인간/시스템안전분야 : FMEA에서 시간을 고려한 기대손실모형에 기초한 위험 평가
권혁무 ( Hyuck Moo Kwon ),홍성훈 ( Sung Hoon Hong ),이민구 ( Min Koo Lee ),( Agung Sutrisno ) 한국안전학회(구 한국산업안전학회) 2011 한국안전학회지 Vol.26 No.6
In FMEA, the risk priority number(RPN) is used for risk evaluation on each failure mode. It is obtained by multiplying three components, i.e., severity, occurrence, and detectability of the corresponding failure mode. Each of the three components are usually determined on the basis of the past experience and technical knowledge. But this approach is not strictly objective in evaluating risk of a given failure mode and thus provide somewhat less scientific measure of risk. Assuming a homogeneous Poisson process for occurrence of the failures and causes, we propose a more scientific approach to evaluation of risk in FMEA. To quantify severity of each failure mode, the mission period is taken into consideration for the system. If the system faces no failure during its mission period, there are no losses. If any failure occurs during its mission period, the losses corresponding to the failure mode incurs. A longer remaining mission period is assumed to incur a larger loss. Detectability of each failure mode is then incorporated into the model assuming an exponential probability law for detection time of each failure cause. Based on the proposed model, an illustrative example and numerical analyses are provided.
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