In: Operations Management
QUESTION 4:
(a) The Workshop Manager must decide the sequence in which the four vehicles in the workshop must be serviced. He has developed these estimates based on the First-Come-First-Served sequence rule:
Vehicle ID Number | Estimated Maintenance Time (days) | Time to Promised Delivery (days) | FCFS Order Sequence |
226 | 27 | 39 | 1 |
229 | 33 | 30 | 2 |
224 | 41 | 60 | 3 |
225 | 29 | 75 | 4 |
Rank the FCFS, SPT and CR sequencing rules on three evaluation criteria: average flow time, average number of jobs in the system, and average job lateness.