IE 304 Practice Questions 7-Operations Scheduling Problem 1: Mike Morales is the supervisor of Legal Copy-Express, which provides copy services for downtown Los Angeles law firms. Five customers submitted their orders at the beginning of the week. Specific scheduling data are as follows: Job (in order of arrival) Processing time (days) A 3 B 4 C 2 D 6 E 1 Due date (days) 5 6 7 9 2 All orders require the use of the only color copy machine available; Morales must decide on the processing sequence for the five orders. Determine the schedule for Morales by using (a) the FCFS rule, (b) the SPT rule, (c) the EDD rule, and (d) the CR rule. For each rule, calculate the average flow time, average tardiness, and number of tardy jobs. If average flow time is most important, which rule should be chosen? Problem 2: Six trucks, 1, 2, ..., 6, are waiting on a loading dock at XYZ Company that has only a single service bay. The trucks are labeled in the order that they arrived at the dock. Assume the current time is 1:00 P.M. The times required to unload each truck and the times that the goods they contain are due in the plant are given in the following table. Truck 1 2 3 4 5 6 Unloading time (minutes) 10 3 4 8 10 6 Time material is due 1:15 P.M. 1:06 P.M. 1:09 P.M. 1:23 P.M. 1:20 P.M. 1:30 PM Use Moore's algorithm to determine the schedule that results in the minimum number of tardy jobs