# CBA390 Final Exam Operations Management

June 13, 2018

Type: ACBA390 Operations Management4. [Extra Credit] [Scheduling (20 pts)] [Scheduling for Saving ScubaDivers] Tom Cruise, as an operations manager of Underwater TreasureDiscovery Company in Miami, FL, is assigned to make a schedule to dispatchdeep-water robots to save five scuba divers needing urgent rescue out of dangerunder deep sea. He does a very brief assessment of how urgent each diverappears and need to determine the best sequence to save all five scuba divers.All the information he knows are The dive-in time, remaining processing time tocomplete the assigned job, and dive time remaining scuba oxygen tank. Do yourbest to save all five scuba divers with BEST OPTIMAL SEQUNECE using yourknowledge of scheduling rules! (Assume that the current time is 11:00 AM andthe time to rescue divers will not be considered for scheduling since a rescuerobot called “Diving Bell” can rescue a diver immediately regardless of location.)*You may use the following template in the last page for your summary and calculation.RemaininDiveEnd TimeCRSe DivegDue StartLateneIn(Flow(Ifq.rProcessin Time Timessnecessary)TimeTime)g Time121Type: ACBA390 Operations Management345Total(a) Which scheduling rule is the most appropriate for saving all five scuba diverssuccessfully? WHY? ([Part 1] Please select an appropriate scheduling rule forthis case among FCFS (First Come First Served), SPT (Shortest ProcessingTime), EDD (Earliest Due Date), LPT (Longest Processing Time), CR (CriticalRatio). [Part 2] Explain the reason you’ve chosen that dispatching rule for thiscase.) (5 points)(b) In what sequence should the jobs be processed according to the schedulingrule you have determined in part (a) above? (5 points)(c) With the job sequence you have determined in part (b) above, what is theaverage number of jobs in the system for completing all jobs? (5 points)(d) With the job sequence you have determined in part (b) above, what is theutilization for this case? (5 points)2Type: ACBA390 Operations Management*You may use the following template for your calculation.1. Scheduling Rule: _________________________RemaininDiveSe DivegDue StartInq.rProcessin Time TimeTimeg Time12345Total2. Scheduling Rule: _________________________RemaininDiveSe DivegDue StartInq.rProcessin Time TimeTimeg Time12345Total3. Scheduling Rule: _________________________RemaininDiveSe DivegDue StartInq.rProcessin Time TimeTimeg Time12345Total3End Time(FlowTime)LatenessCriticalRatio(Ifnecessary)End Time(FlowTime)LatenessCriticalRatio(Ifnecessary)LatenessCriticalRatio(Ifnecessary)End Time(FlowTime)Type: ACBA390 Operations Management4. Scheduling Rule: _________________________RemaininDiveSe DivegDue StartInq.rProcessin Time TimeTimeg Time12345TotalEnd Time(FlowTime)[THE END OF THE FINAL EXAM]4LatenessCriticalRatio(Ifnecessary)

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