Taguchi designs are a type
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: