The Taguchi loss function is represented as a U-shaped function. At the target specification, Obj. 4 the quality loss is zero. As actual measurements move up or down from the target, quality losses occur at an increasing rate.

Taguchi also describes two variations of the U-shaped function as follows:

a. More is better.

b. Less is better.

The "more is better" function describes quality losses as a critical quality characteristic declines from a target. For example, weld strength is an example of a "more is better" function. This function is illustrated as follows:

Using your understanding of the Taguchi loss function, prepare a sketch of the "less is better" loss function. Identify three examples of quality costs that might be described by the "less is better" loss function.

Transcribed Image Text:

Quality loss $ Target specification X