FCFS JOB PROCESSING TIME DUE TIME FLOW TIME LATENESS A 20 50 0 + 20 = 20 B 30 70 20 + 30 = 50 C 10 45 50 + 10 = 60 15 D 16 100 60 + 16 = 76 E 18 80 76 + 18 = 94 14 AVERAGE JOB LATENESS = TOTAL JOB LATENESS / N = 29 / 5 = 5.8 UTILIZATION METRIC = (TOTAL PROCESSING TIME / TOTAL FLOW TIME) * 100 = 94 / 300 * 100 = 31.33 EDD JOB PROCESSING TIME DUE TIME FLOW TIME LATENESS C 10 45 0 + 10 = 10 A 20 50 10 + 20 = 30 B 30 70 30 + 30 = 60 E 18 80 60 + 18 = 78 D 16 100 78 + 16 = 94 AVERAGE JOB LATENESS = TOTAL JOB LATENESS / N = 0 / 5 = 0 UTILIZATION METRIC = (TOTAL PROCESSING TIME / TOTAL FLOW TIME) * 100 = 94 / 272 * 100 = 34.56 LPT JOB Processing Time (days) Due Date Flow Time Job Lateness B 30 70 0 + 30 = 30 A 20 50 30 + 20 = 50 0 E 18 80 50 + 18 = 68 D 16 100 68 + 16 = 84 C 10 45 84 + 10 = 94 49 AVERAGE JOB LATENESS = TOTAL JOB LATENESS / N = 49 / 5 = 9.8 UTILIZATION METRIC = (TOTAL PROCESSING TIME / TOTAL FLOW TIME) * 100 = 94 / 326 * 100 = 28.83 2.

If job lateness is the selection criteria which is the best rule (10 marks)

Which is the best rule if Ramsons is concerned about utilization (10 marks)