Statistical Design of Experiments
Statistical Design of Experiments
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70 input factors that we felt could have a significant effect on
70 input factors that we felt could have a significant effect on
the quality characteristics under study were identified.
the quality characteristics under study were identified.
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Easy to fix problems were identified and improvements made
Easy to fix problems were identified and improvements made
immediately.
immediately.
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The remaining input factors were ranked and the top 15 factors
The remaining input factors were ranked and the top 15 factors
selected for further study using a Taguchi Orthogonal Array
selected for further study using a Taguchi Orthogonal Array
design.
design.
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Next the workgroup discussed potential interactions between
Next the workgroup discussed potential interactions between
the input factors included in the experiment.
the input factors included in the experiment.
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Based on our engineering knowledge of the test system, the
Based on our engineering knowledge of the test system, the
workgroup felt that it was more important to evaluate the main
workgroup felt that it was more important to evaluate the main
effects of the input factors than test for interactions between
effects of the input factors than test for interactions between
input factors.
input factors.
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Two levels (Usually high and low) were selected for each input
Two levels (Usually high and low) were selected for each input
factor.
factor.
Test Cell Improvement Project
Test Cell Improvement Project
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