The document discusses Taguchi's approach to design of experiments (DOE). It was developed by Genichi Taguchi, a Japanese engineer born in 1924. Taguchi advocated for robust engineering to account for multiple factors that could impact product quality. His three-step method includes concept design, parameter design, and tolerance design. It also outlines the six steps to conducting a Taguchi experiment: problem identification, brainstorming, experiment design, running the experiment, analysis, and confirmation.