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QICID: 19058
Title: Augmented Ruggedness Testing to Prevent Failures
Copyright: 2003, ASQ
Author: Anderson, Mark J.
Organization: Stat-Ease Inc., Minneapolis, MN
Subject: Testing,Robustness,Failure analysis,Validation,Variation,Alias,Design of experiments (DOE);
Series: Quality Progress, Vol. 36, No. 5, May 2003, pp. 38-45
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Abstract: Ruggedness testing, a form of design of experiments (DOE), can prevent failures in the processing and use of products by challenging the process, product, or method, then revealing how inputs change as variables fluctuate over ranges encountered during normal use. Ruggedness testing assumes that no factors will be significant. Such low resolution, saturated designs won�t reveal the true causes for failure, and high resolution factorial designs could be wasteful if the process is actually rugged. A medium resolution design is a good compromise between the investment in experimental runs and the return of information. The design is illustrated in a bread baking example that has implications in manufacturing processes, products, and systems. A sidebar article explains ruggedness vs. robustness.
Number of pages: 8
Price for ASQ Members: $5.00
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