Mlesd Fractional Factorial Design 16888 E77 Initially, it may be useful to look at a large number of factors superficially rather than a small number of factors in detail: 1112 1112:113:143… 21:122 213122::23:24…… VS 311325:133:1343 many levels n15n2 many factors 8 C Massachusetts Institute of Technology - Prof de Weck and Prof Willcox Engineering Systems Division and Dept of Aeronautics and Astronautics8 © Massachusetts Institute of Technology - Prof. de Weck and Prof. Willcox Engineering Systems Division and Dept. of Aeronautics and Astronautics Fractional Factorial Design Fractional Factorial Design Initially, it may be useful to look at a large number of factors superficially rather than a small number of factors in detail: 1 11 12 2 21 22 1 2 , , , n nn f ll f ll f ll # # 1 11 12 13 14 2 21 22 23 24 3 31 32 33 34 ,,,, , ,, , , , ,, , , f llll f ll ll f ll ll ! ! ! vs. many levels many factors