Justification of new technologies through the use of “cause and effect” analysis: Case of tile replacement at Kennedy space center |
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Authors: | Yasser Hosni and Labiche Ferreira |
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Affiliation: | Department of Industrial Engineering and Management Systems University of Central Florida, Orlando, Florida 32816, USA |
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Abstract: | This paper presents a case of introducing new technology to a single stage in a maintenance operation composed of sequence of stages. The process - Thermal tile replacement - is a low volume, high value operation. A method for data collection at each stage, to estimate the variability in process quality, cost and duration is presented. The method involves: Identifying key product features, accuracy measure for each, rate of product rejection by feature and the associated probability density functions at each stage. The method relates accuracy variability by feature, “effect” to the contributing stage in the process “cause”. Simulation is used to justify the introduction of a new technology and to predict the percentage of product conformity in a “before” and “after” scenarios for the implementation of the new technology. The simulation model enables the quantification of technology impact on the product quality, overall productivity and the associated cost savings. |
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