Mike Nelson is operating a small machine shop in Spryfield. The shop sets fresh schedules every two weeks, based on the jobs received during the past two weeks (plus any jobs that may not have been completed during the last scheduling cycle). It is the morning of Day 241 (a Monday). The following jobs need to be scheduled:

Jobs are due at the end of the day, and always on a Friday. a) Schedule these jobs using the following dispatching rules: i. First come-first served (FCFS) ii. Earliest due date (EDD) iii. Shortest processing time (SPT) iv. Critical ratio (CR) v. Longest processing time (LPT) b) Compare the resulting schedules on the following criteria: i. Flow time ii. Utilization iii. Total lateness iv. Number of jobs late c) Which dispatching rule would you select? Support your decision

Production Days needed Date received 228 225 230 Due date 260 Job 61424 90222 50349 85676 02429 15 25 35 40 290 300 320 235 231 30 340