A manager wants to assign tasks to workstations in order to achieve an hourly output rate of four units. The department uses a working time of 56 minutes per hour.
a. Assign the tasks shown in the following precedence network (times are on the nodes and are in minutes) to workstations using the following heuristic rules: (i) “Assign the task with the most followers.” (ii) Tiebreaker: “Assign the task with the longest time.” If a tie still exists, choose randomly.
b. What is the efficiency?