Robust design (Taguchi method) — parameter design, tolerance design, signal-to-noise ratio (S/N: nominal-is-best, smaller-is-better, larger-is-better), orthogonal arrays (L9, L18, L27), control vs. noise factors, outer array experiment, ANOVA for factor significance, response surface methodology (RSM), Six Sigma DMAIC, Cpk/Cp process capability, Monte Carlo tolerance analysis, and DFSS (Design for Six Sigma) methodology.
