Q3. The sample parts (pl to p9) are required to visit their corresponding operation machines (op1 to op10). The matrix shown below describes the part-machine visiting records. Please use the Rank-Order cluster analysis method to form part families and machine cells. (A) Write the parts in each part family. (for example, part family 1, PF1 (p1,p2,p3)). (B) Write down the machines in each cell. (C) If you identify some "black horse" in forming machine cell, please discuss your consideration. op1 op8 op9 op 10 pl p2 1 p3 p4 p5 p7 1 p8 p9 op2 op3 op4 op5 op6 1 1 1 1 1 1 1 1 1 1 1 1 op7 1 1 1 1 1 1 1 1 1 1

Q3. The sample parts ( p1 to p9 ) are required to visit their corresponding operation machines (opl to op10). The matrix shown below describes the part-machine visiting records. Please use the Rank-Order cluster analysis method to form part families and machine cells. (A) Write the parts in each part family. (for example, part family 1, PF1(p1,p2,p3)). (B) Write down the machines in each cell. (C) If you identify some "black horse" in forming machine cell, please discuss your