Figure 5.6 shows a solution that cr

Figure 5.6 shows a solution that creates just five workstations. We know that five is the minimum possible, because five is the theoretical minimum found in Example 5.5 All of the precedence and cycle-time requirements are also satisfied. Consequently, the solution is optimal for this problem. Each worker at each station must perform the work elements in the proper sequence. For example, workstation S5 consists of one worker who will perform work elements E, H, and I on each unit that comes along the assembly line. The processing time per unit is 44 seconds 16 + 20 + 182 which does not exceed the cycle time of 60 seconds (see Example 5.5). Furthermore, the immediate predecessors of these three work elements are assigned to this workstation or upstream workstations, so their precedence requirements are satisfied. The worker at workstation S5 can do element I at any time but will not start element H until element E is finished.