The 2-level design types used for screening are the Taguchi L_8, L_12, and L_16 designs. These designs are also referred to as Plackett-Burman, Latin Square, and/or Hadamard matrix designs of 8, 12, or 16 runs [Schm 94]. Tables 8.23, 8.24, and 8.25 can used as templates for screening 6 to 15 factors.