USB Corp. is designing a product layout for a new product. They plan to use this production line ten hours a day in order to meet forecasted demand of 900 units per day. The following table describes the tasks necessary to produce this product:
Task Time (secs) Immediate Predecessor
a. Draw the precedence diagram for this line with the processing times for each task displayed.
b. Assign tasks to work stations using the greatest number of following tasks as the heuristic rule. Use the tiebreaker rule of assigning the task with the longest processing time.
c. Compute the efficiency and the percentage of idle time for the system.