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Taguchi Experimental Design

Taguchi designs are a type of experimental design pioneered by Genichi Taguchi. They are distinguished by the use of:

• the Signal to Noise Ratio
• inner and outer arrays
• Taguchi arrays

Taguchi designs are criticized by many experts. Taguchi does not give the same attention to interactions (taguchi designs are often highly confounded screening designs) as the classical design of experiment approach. It is also easy to demonstrate that the Signal to Noise ratio method does not always give the best results, particularly when the aim is to achieve a target response rather than maximize or minimize the response. One of the original advantages of the Taguchi approach was that it favored graphical analysis and avoided complex analysis. With modern software, such as Minitab, this advantage is no longer as strong.

Terms related to Taguchi Designs include:

 Inner and Outer Array Linear Graphs Loss Function Robust Design Signal to Noise Ratio Taguchi Arrays

 The Design of Experiments is covered in the MiC Quality basic Design of Experiments course and Advanced Design of Experiments course. Try out our courses by taking the first module of the Primer in Statistics free of charge.
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