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Design of Experiments Guide > Taguchi Designs > Overview of Taguchi Designs
Publication date: 11/29/2021

Overview of Taguchi Designs

A Taguchi Design uses two types of factors: control factors and noise factors.

An inner design is constructed for the control factors.

An outer design is constructed for the noise factors.

The experiment is performed on all combinations of the inner and outer design runs. The noise factors have to be controlled during the experiment. The mean and standard deviation for each setting in the inner array across the noise settings are combined into a signal-to-noise measure for analysis. Table 14.1 lists the signal-to-noise performance statistics.

Table 14.1 Recommended Performance Statistics


S/N Ratio Formula

nominal is best

Equation shown here

larger-is-better (maximize)

Equation shown here

smaller-is-better (minimize)

Equation shown here

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