Strategies for Variability Reduction
نویسندگان
چکیده
An important goal of quality improvement in manufacturing is the reduction of variability in product characteristics. Producing more consistent output improves product performance and may reduce manufacturing costs. This article discusses and contrasts five generic variation reduction strategies that encompass all current methods. The five are: output inspection, feed-back control, reduction of variation in process inputs, feed-forward control, and process desensitization. Each strategy has distinct advantages and disadvantages and is only applicable in certain circumstances. The article compares and contrasts the strategies and provides practitioners guidance in choosing the most appropriate. An example from the automotive industry that illustrates the thought process necessary to choose appropriately is presented. Strategies for Variability Reduction Jock MacKay and Stefan Steiner Dept. of Statistics and Actuarial Science, University of Waterloo, Waterloo, ON N2L 3G1 (519) 888-4567 x5146 2
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