Define problem enviorment clearly and proposed a method to find sequence for minimizing Cmax for 7 jobs which requires three operations in series. There are four machines in the shop as indicated in figure below. There is choice of machines between M2 and M3 for second operation. All machines processes one job at a time. The processing times requires for every operation on jobs are given in the table: M2 M1 M4 M3 Operation 1 Operation 2 Operation 3 7 Jobs Pli 10 21 1 44 85 34 23 21 41 52 30 32 4 12 82 26 5 39 49 36 6 42 75 40 P2i P3i 46 27