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© 2009 Factory Strategies Group LLC. All rights reserved. Design of Experiments Quality Series (Sample Slides)

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1 © 2009 Factory Strategies Group LLC. All rights reserved. Design of Experiments Quality Series (Sample Slides)

2 2 © 2009 Factory Strategies Group LLC. All rights reserved. Outline What is Design of Experiments? Method Step 1: Model Variables Step 2: Set Variable Targets Step 3: Experimental Plan Step 4: Testing Step 4: Analysis Effects, Replicates & Interactions

3 3 © 2009 Factory Strategies Group LLC. All rights reserved. DOE Goal Overall goal: To model a performance parameter (i.e., a physical phenomenon) as a function of design variables (i.e., things we can control about the design) Our approach: Follow the DOE methodology

4 4 © 2009 Factory Strategies Group LLC. All rights reserved. Step 5: Analysis Determine ß coefficients Regression analysis may be used (spreadsheets) ßs can be defined in terms of the effect a variable xi has on the perf. parameter

5 5 © 2009 Factory Strategies Group LLC. All rights reserved. Using the Effects From a response diagram point of view: Plot values of y vs. xi(-) and xi(+) Important DVDV has no effect on perf.


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