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: