Taguchi's Method for Robust Design December 10, 1997 David G. Ullman Professor, Department of Mechanical Engineering Oregon State University Corvallis Oregon, 97331 USA 541-737-2336 FAX 541-737-2600 ullman@engr.orst.edu www.engr.orst.edu/~ullman

Step 4: Establish Control Factors and Levels 3/4