2. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Chapter 17 - Scheduling

3. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Manufacturing Process

4. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Manufacturing Process Raw Materials Legend: Batch of parts Workstation Shipping Department Figure 17.1

5. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Manufacturing Process Raw Materials Legend: Batch of parts Workstation Shipping Department Figure 17.1

6. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Manufacturing Process Raw Materials Legend: Batch of parts Workstation Shipping Department Figure 17.1

7. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Manufacturing Process Raw Materials Legend: Batch of parts Workstation Shipping Department Figure 17.1

8. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Manufacturing Process Raw Materials Legend: Batch of parts Workstation Shipping Department Figure 17.1

9. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Manufacturing Process Raw Materials Legend: Batch of parts Workstation Shipping Department Figure 17.1

10. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Manufacturing Process Raw Materials Legend: Batch of parts Workstation Shipping Department Figure 17.1

11. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Gantt Charts

12. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Gantt Charts Progress Chart Plymouth Ford Pontiac Job4/204/224/234/244/254/264/214/174/184/19 Figure 17.2

13. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Gantt Charts Progress Chart Figure 17.2 Plymouth Ford Pontiac Job4/204/224/234/244/254/264/214/174/184/19 Key Start activity Finish activity Scheduled activity time Actual progress Nonproductive time

14. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Gantt Charts Progress Chart Plymouth Ford Pontiac Job4/204/224/234/244/254/264/214/174/184/19 Figure 17.2

15. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Gantt Charts Progress Chart Plymouth Ford Pontiac Job4/204/224/234/244/254/264/214/174/184/19 Figure 17.2

16. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Gantt Charts Progress Chart Plymouth Ford Pontiac Job4/204/224/234/244/254/264/214/174/184/19 Current date Figure 17.2

17. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Machine4/204/224/234/244/254/26 Grinder Lathe 4/21 Gantt Charts Machine Chart Figure 17.3

18. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Machine4/204/224/234/244/254/26 Grinder Lathe PlymouthPontiacFord PlymouthPontiacFord 4/21 Gantt Charts Machine Chart Figure 17.3

19. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Machine4/204/224/234/244/254/26 Grinder Lathe PlymouthPontiacFord PlymouthPontiacFord 4/21 Gantt Charts Machine Chart Figure 17.3

20. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Current date Machine4/204/224/234/244/254/26 Grinder Lathe PlymouthPontiacFord PlymouthPontiacFord 4/21 Gantt Charts Machine Chart Figure 17.3

21. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Performance Measures  Job flow time = Time of completion – Time job was available for first processing  Makespan = Time of completion of last job – Starting time of first job  Past due  Work-in-process inventory  Total inventory = Scheduled receipts for all items + On-hand inventories of all items  Utilization = Productive work time/Total work time available

22. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Dispatching Procedures  Critical ratio (CR) = (Due date – Today’s date)/Total shop time remaining  Earliest due date (EDD)  First come, first served (FCFS)  Shortest processing time (SPT)  Slack per remaining operations (S/RO) = ((Due date - Today’s date) – Total shop time remaining)/ Number of operations remaining

23. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Single-Dimension Rules

24. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Single-Dimension Rules—EDD JobScheduledActual EngineProcessingFlowCustomerCustomerHours BlockBeginTimeTimePickupPickupHoursPast SequenceWork(hr)(hr)TimeTimeEarlyDue Ranger 810 Explorer 612 Econoline 150 318 Bronco 1520 Thunderbird 1222 Example 17.1

25. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Single-Dimension Rules—EDD JobScheduledActual EngineProcessingFlowCustomerCustomerHours BlockBeginTimeTimePickupPickupHoursPast SequenceWork(hr)(hr)TimeTimeEarlyDue Ranger 0+8=810 Explorer 612 Econoline 150 318 Bronco 1520 Thunderbird 1222 Example 17.1

26. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Single-Dimension Rules—EDD JobScheduledActual EngineProcessingFlowCustomerCustomerHours BlockBeginTimeTimePickupPickupHoursPast SequenceWork(hr)(hr)TimeTimeEarlyDue Ranger 0+8=810102 Explorer 612 Econoline 150 318 Bronco 1520 Thunderbird 1222 Example 17.1

27. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Single-Dimension Rules—EDD JobScheduledActual EngineProcessingFlowCustomerCustomerHours BlockBeginTimeTimePickupPickupHoursPast SequenceWork(hr)(hr)TimeTimeEarlyDue Ranger 0+8=810102 Explorer 8+6=1412142 Econoline 150 318 Bronco 1520 Thunderbird 1222 Example 17.1

28. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Single-Dimension Rules—EDD JobScheduledActual EngineProcessingFlowCustomerCustomerHours BlockBeginTimeTimePickupPickupHoursPast SequenceWork(hr)(hr)TimeTimeEarlyDue Ranger 0+8=810102 Explorer 8+6=1412142 Econoline 150 14+3=1718181 Bronco 1520 Thunderbird 1222 Example 17.1

29. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Single-Dimension Rules—EDD JobScheduledActual EngineProcessingFlowCustomerCustomerHours BlockBeginTimeTimePickupPickupHoursPast SequenceWork(hr)(hr)TimeTimeEarlyDue Ranger 0+8=810102 Explorer 8+6=1412142 Econoline 150 14+3=1718181 Bronco 17+15=32203212 Thunderbird 1222 Example 17.1

30. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Single-Dimension Rules—EDD JobScheduledActual EngineProcessingFlowCustomerCustomerHours BlockBeginTimeTimePickupPickupHoursPast SequenceWork(hr)(hr)TimeTimeEarlyDue Ranger 0+8=810102 Explorer 8+6=1412142 Econoline 150 14+3=1718181 Bronco 17+15=32203212 Thunderbird 32+12=44224422 Example 17.1

31. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Single-Dimension Rules—EDD JobScheduledActual EngineProcessingFlowCustomerCustomerHours BlockBeginTimeTimePickupPickupHoursPast SequenceWork(hr)(hr)TimeTimeEarlyDue Ranger 0+8=810102 Explorer 8+6=1412142 Econoline 150 14+3=1718181 Bronco 17+15=32203212 Thunderbird 32+12=44224422 Average job flow time = 8 + 14 + 17 + 32 + 44 5 Example 17.1

32. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Single-Dimension Rules—EDD JobScheduledActual EngineProcessingFlowCustomerCustomerHours BlockBeginTimeTimePickupPickupHoursPast SequenceWork(hr)(hr)TimeTimeEarlyDue Ranger 0+8=810102 Explorer 8+6=1412142 Econoline 150 14+3=1718181 Bronco 17+15=32203212 Thunderbird 32+12=44224422 Average job flow time = 23 hours Example 17.1

33. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Single-Dimension Rules—EDD JobScheduledActual EngineProcessingFlowCustomerCustomerHours BlockBeginTimeTimePickupPickupHoursPast SequenceWork(hr)(hr)TimeTimeEarlyDue Ranger 0+8=810102 Explorer 8+6=1412142 Econoline 150 14+3=1718181 Bronco 17+15=32203212 Thunderbird 32+12=44224422 Average job flow time = 23 hoursAverage hours early = 2 + 0 + 1 + 0 + 0 5 Example 17.1

34. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Single-Dimension Rules—EDD JobScheduledActual EngineProcessingFlowCustomerCustomerHours BlockBeginTimeTimePickupPickupHoursPast SequenceWork(hr)(hr)TimeTimeEarlyDue Ranger 0+8=810102 Explorer 8+6=1412142 Econoline 150 14+3=1718181 Bronco 17+15=32203212 Thunderbird 32+12=44224422 Average job flow time = 23 hoursAverage hours early = 0.6 hour Example 17.1

35. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Single-Dimension Rules—EDD JobScheduledActual EngineProcessingFlowCustomerCustomerHours BlockBeginTimeTimePickupPickupHoursPast SequenceWork(hr)(hr)TimeTimeEarlyDue Ranger 0+8=810102 Explorer 8+6=1412142 Econoline 150 14+3=1718181 Bronco 17+15=32203212 Thunderbird 32+12=44224422 Average job flow time = 23 hoursAverage hours early = 0.6 hour Average hours past due = 0 + 2 + 0 + 12 + 22 5 Example 17.1

36. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Single-Dimension Rules—EDD JobScheduledActual EngineProcessingFlowCustomerCustomerHours BlockBeginTimeTimePickupPickupHoursPast SequenceWork(hr)(hr)TimeTimeEarlyDue Ranger 0+8=810102 Explorer 8+6=1412142 Econoline 150 14+3=1718181 Bronco 17+15=32203212 Thunderbird 32+12=44224422 Average job flow time = 23 hoursAverage hours early = 0.6 hour Average hours past due = 7.2 hours Example 17.1

37. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Single-Dimension Rules—EDD JobScheduledActual EngineProcessingFlowCustomerCustomerHours BlockBeginTimeTimePickupPickupHoursPast SequenceWork(hr)(hr)TimeTimeEarlyDue Ranger 0+8=810102 Explorer 8+6=1412142 Econoline 150 14+3=1718181 Bronco 17+15=32203212 Thunderbird 32+12=44224422 Average job flow time = 23 hoursAverage hours early = 0.6 hour Average hours past due = 7.2 hoursAverage WIP = Sum of flow times Makespan Example 17.1

38. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Single-Dimension Rules—EDD JobScheduledActual EngineProcessingFlowCustomerCustomerHours BlockBeginTimeTimePickupPickupHoursPast SequenceWork(hr)(hr)TimeTimeEarlyDue Ranger 0+8=810102 Explorer 8+6=1412142 Econoline 150 14+3=1718181 Bronco 17+15=32203212 Thunderbird 32+12=44224422 Average job flow time = 23 hoursAverage hours early = 0.6 hour Average hours past due = 7.2 hoursAverage WIP = 8 + 14 + 17 + 32 + 44 44 Example 17.1

39. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Single-Dimension Rules—EDD JobScheduledActual EngineProcessingFlowCustomerCustomerHours BlockBeginTimeTimePickupPickupHoursPast SequenceWork(hr)(hr)TimeTimeEarlyDue Ranger 0+8=810102 Explorer 8+6=1412142 Econoline 150 14+3=1718181 Bronco 17+15=32203212 Thunderbird 32+12=44224422 Average job flow time = 23 hoursAverage hours early = 0.6 hour Average hours past due = 7.2 hoursAverage WIP = 2.61 blocks Example 17.1

40. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Single-Dimension Rules—EDD JobScheduledActual EngineProcessingFlowCustomerCustomerHours BlockBeginTimeTimePickupPickupHoursPast SequenceWork(hr)(hr)TimeTimeEarlyDue Ranger 0+8=810102 Explorer 8+6=1412142 Econoline 150 14+3=1718181 Bronco 17+15=32203212 Thunderbird 32+12=44224422 Average job flow time = 23 hoursAverage hours early = 0.6 hour Average hours past due = 7.2 hoursAverage WIP = 2.61 blocks Average total inventory = Sum of time in system Makespan Example 17.1

41. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Single-Dimension Rules—EDD JobScheduledActual EngineProcessingFlowCustomerCustomerHours BlockBeginTimeTimePickupPickupHoursPast SequenceWork(hr)(hr)TimeTimeEarlyDue Ranger 0+8=810102 Explorer 8+6=1412142 Econoline 150 14+3=1718181 Bronco 17+15=32203212 Thunderbird 32+12=44224422 Average job flow time = 23 hoursAverage hours early = 0.6 hour Average hours past due = 7.2 hoursAverage WIP = 2.61 blocks Average total inventory = 10 + 14 + 18 + 32 + 44 44 Example 17.1

42. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Single-Dimension Rules—EDD JobScheduledActual EngineProcessingFlowCustomerCustomerHours BlockBeginTimeTimePickupPickupHoursPast SequenceWork(hr)(hr)TimeTimeEarlyDue Ranger 0+8=810102 Explorer 8+6=1412142 Econoline 150 14+3=1718181 Bronco 17+15=32203212 Thunderbird 32+12=44224422 Average job flow time = 23 hoursAverage hours early = 0.6 hour Average hours past due = 7.2 hoursAverage WIP = 2.61 blocks Average total inventory = 2.68 engine blocks Example 17.1

43. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Single-Dimension Rules—SPT Example 17.1

44. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Single-Dimension Rules—SPT JobScheduledActual EngineProcessingFlowCustomerCustomerHours BlockBeginTimeTimePickupPickupHoursPast SequenceWork(hr)(hr)TimeTimeEarlyDue Econoline 150 0+3= 3181815 Explorer 3+6=912123 Ranger 6+8=1710177 Thunderbird 17+12=2922297 Bronco 29+15=44204424 Average job flow time = 20.4 hoursAverage hours early = 3.6 hour Average hours past due = 7.6 hoursAverage WIP = 2.32 blocks Average total inventory = 2.73 engine blocks Example 17.1

45. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Single-Dimension Rules—SPT JobScheduledActual EngineProcessingFlowCustomerCustomerHours BlockBeginTimeTimePickupPickupHoursPast SequenceWork(hr)(hr)TimeTimeEarlyDue Econoline 150 0+3= 3181815 Explorer 3+6=912123 Ranger 6+8=1710177 Thunderbird 17+12=2922297 Bronco 29+15=44204424 Average job flow time = 20.4 hoursAverage hours early = 3.6 hour Average hours past due = 7.6 hoursAverage WIP = 2.32 blocks Average total inventory = 2.73 engine blocks Rule Comparison EDDSPT Average job flow time23.0020.40 Average hours early0.603.60 Average hours past due7.207.60 Average WIP2.612.32 Average total inventory2.682.73 Example 17.1

46. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Multiple-Dimension Rules

47. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Multiple-Dimension Rules 12.315106.1 210.51027.8 36.2201214.5 415.68510.2 OperationTime Time atRemainingNumber of Engineto Due DateOperationsShop Time JobLathe (hr)(Days)RemainingRemainingCRS/RO Example 17.2

48. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Multiple-Dimension Rules 12.315106.1 210.51027.8 36.2201214.5 415.68510.2 OperationTime Time atRemainingNumber of Engineto Due DateOperationsShop Time JobLathe (hr)(Days)RemainingRemainingCRS/RO CR = Time remaining to due date Shop time remaining Example 17.2

49. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Multiple-Dimension Rules 12.315106.1 210.51027.8 36.2201214.5 415.68510.2 OperationTime Time atRemainingNumber of Engineto Due DateOperationsShop Time JobLathe (hr)(Days)RemainingRemainingCRS/RO CR = 15 6.1 Example 17.2

50. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Multiple-Dimension Rules 12.315106.1 210.51027.8 36.2201214.5 415.68510.2 OperationTime Time atRemainingNumber of Engineto Due DateOperationsShop Time JobLathe (hr)(Days)RemainingRemainingCRS/RO CR = = 2.46 15 6.1 Example 17.2

51. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Multiple-Dimension Rules 12.315106.12.46 210.51027.8 36.2201214.5 415.68510.2 OperationTime Time atRemainingNumber of Engineto Due DateOperationsShop Time JobLathe (hr)(Days)RemainingRemainingCRS/RO CR = = 2.46 15 6.1 Example 17.2

52. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Multiple-Dimension Rules 12.315106.12.46 210.51027.81.28 36.2201214.51.38 415.68510.20.78 OperationTime Time atRemainingNumber of Engineto Due DateOperationsShop Time JobLathe (hr)(Days)RemainingRemainingCRS/RO Example 17.2

53. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Multiple-Dimension Rules 12.315106.12.46 210.51027.81.28 36.2201214.51.38 415.68510.20.78 OperationTime Time atRemainingNumber of Engineto Due DateOperationsShop Time JobLathe (hr)(Days)RemainingRemainingCRS/RO S/RO = Time remaining to due date – Shop time remaining Number of operations remaining Example 17.2

54. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Multiple-Dimension Rules 12.315106.12.46 210.51027.81.28 36.2201214.51.38 415.68510.20.78 OperationTime Time atRemainingNumber of Engineto Due DateOperationsShop Time JobLathe (hr)(Days)RemainingRemainingCRS/RO S/RO = 15 – 6.1 10 Example 17.2

55. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Multiple-Dimension Rules 12.315106.12.46 210.51027.81.28 36.2201214.51.38 415.68510.20.78 OperationTime Time atRemainingNumber of Engineto Due DateOperationsShop Time JobLathe (hr)(Days)RemainingRemainingCRS/RO S/RO = = 0.89 15 – 6.1 10 Example 17.2

56. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Multiple-Dimension Rules 12.315106.12.460.89 210.51027.81.28 36.2201214.51.38 415.68510.20.78 OperationTime Time atRemainingNumber of Engineto Due DateOperationsShop Time JobLathe (hr)(Days)RemainingRemainingCRS/RO S/RO = = 0.89 15 – 6.1 10 Example 17.2

57. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Multiple-Dimension Rules 12.315106.12.460.89 210.51027.81.281.10 36.2201214.51.380.46 415.68510.20.78– 0.44 OperationTime Time atRemainingNumber of Engineto Due DateOperationsShop Time JobLathe (hr)(Days)RemainingRemainingCRS/RO Example 17.2

58. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Multiple-Dimension Rules 12.315106.12.460.89 210.51027.81.281.10 36.2201214.51.380.46 415.68510.20.78– 0.44 OperationTime Time atRemainingNumber of Engineto Due DateOperationsShop Time JobLathe (hr)(Days)RemainingRemainingCRS/RO CR Sequence= Example 17.2

59. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Multiple-Dimension Rules 12.315106.12.460.89 210.51027.81.281.10 36.2201214.51.380.46 415.68510.20.78– 0.44 OperationTime Time atRemainingNumber of Engineto Due DateOperationsShop Time JobLathe (hr)(Days)RemainingRemainingCRS/RO CR Sequence= 4 Example 17.2

60. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Multiple-Dimension Rules 12.315106.12.460.89 210.51027.81.281.10 36.2201214.51.380.46 415.68510.20.78– 0.44 OperationTime Time atRemainingNumber of Engineto Due DateOperationsShop Time JobLathe (hr)(Days)RemainingRemainingCRS/RO CR Sequence= 4 – 2 Example 17.2

61. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Multiple-Dimension Rules 12.315106.12.460.89 210.51027.81.281.10 36.2201214.51.380.46 415.68510.20.78– 0.44 OperationTime Time atRemainingNumber of Engineto Due DateOperationsShop Time JobLathe (hr)(Days)RemainingRemainingCRS/RO CR Sequence= 4 – 2 – 3 Example 17.2

62. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Multiple-Dimension Rules 12.315106.12.460.89 210.51027.81.281.10 36.2201214.51.380.46 415.68510.20.78– 0.44 OperationTime Time atRemainingNumber of Engineto Due DateOperationsShop Time JobLathe (hr)(Days)RemainingRemainingCRS/RO CR Sequence= 4 – 2 – 3 – 1 Example 17.2

63. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Multiple-Dimension Rules 12.315106.12.460.89 210.51027.81.281.10 36.2201214.51.380.46 415.68510.20.78– 0.44 OperationTime Time atRemainingNumber of Engineto Due DateOperationsShop Time JobLathe (hr)(Days)RemainingRemainingCRS/RO CR Sequence= 4 – 2 – 3 – 1 S/RO Sequence= Example 17.2

64. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Multiple-Dimension Rules 12.315106.12.460.89 210.51027.81.281.10 36.2201214.51.380.46 415.68510.20.78– 0.44 OperationTime Time atRemainingNumber of Engineto Due DateOperationsShop Time JobLathe (hr)(Days)RemainingRemainingCRS/RO CR Sequence= 4 – 2 – 3 – 1 S/RO Sequence= 4 Example 17.2

65. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Multiple-Dimension Rules 12.315106.12.460.89 210.51027.81.281.10 36.2201214.51.380.46 415.68510.20.78– 0.44 OperationTime Time atRemainingNumber of Engineto Due DateOperationsShop Time JobLathe (hr)(Days)RemainingRemainingCRS/RO CR Sequence= 4 – 2 – 3 – 1 S/RO Sequence= 4 – 3 Example 17.2

66. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Multiple-Dimension Rules 12.315106.12.460.89 210.51027.81.281.10 36.2201214.51.380.46 415.68510.20.78 – 0.44 OperationTime Time atRemainingNumber of Engineto Due DateOperationsShop Time JobLathe (hr)(Days)RemainingRemainingCRS/RO CR Sequence= 4 – 2 – 3 – 1 S/RO Sequence= 4 – 3 – 1 Example 17.2

67. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Multiple-Dimension Rules 12.315106.12.460.89 210.51027.81.281.10 36.2201214.51.380.46 415.68510.20.78– 0.44 OperationTime Time atRemainingNumber of Engineto Due DateOperationsShop Time JobLathe (hr)(Days)RemainingRemainingCRS/RO CR Sequence= 4 – 2 – 3 – 1 S/RO Sequence= 4 – 3 – 1 – 2 Example 17.2

68. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Multiple-Dimension Rules 12.315106.12.460.89 210.51027.81.281.10 36.2201214.51.380.46 415.68510.20.78– 0.44 OperationTime Time atRemainingNumber of Engineto Due DateOperationsShop Time JobLathe (hr)(Days)RemainingRemainingCRS/RO CR Sequence= 4 – 2 – 3 – 1 S/RO Sequence= 4 – 3 – 1 – 2 Sequence Summary Example 17.2

69. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Multiple-Dimension Rules 12.315106.12.460.89 210.51027.81.281.10 36.2201214.51.380.46 415.68510.20.78– 0.44 OperationTime Time atRemainingNumber of Engineto Due DateOperationsShop Time JobLathe (hr)(Days)RemainingRemainingCRS/RO CR Sequence= 4 – 2 – 3 – 1 S/RO Sequence= 4 – 3 – 1 – 2 Sequence Summary FCFS=1 – 2 – 3 – 4 Example 17.2

70. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Multiple-Dimension Rules 12.315106.12.460.89 210.51027.81.281.10 36.2201214.51.380.46 415.68510.20.78– 0.44 OperationTime Time atRemainingNumber of Engineto Due DateOperationsShop Time JobLathe (hr)(Days)RemainingRemainingCRS/RO CR Sequence= 4 – 2 – 3 – 1 S/RO Sequence= 4 – 3 – 1 – 2 Sequence Summary FCFS=1 – 2 – 3 – 4 SPT=1 – 3 – 2 – 4 Example 17.2

71. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Multiple-Dimension Rules 12.315106.12.460.89 210.51027.81.281.10 36.2201214.51.380.46 415.68510.20.78– 0.44 OperationTime Time atRemainingNumber of Engineto Due DateOperationsShop Time JobLathe (hr)(Days)RemainingRemainingCRS/RO CR Sequence= 4 – 2 – 3 – 1 S/RO Sequence= 4 – 3 – 1 – 2 Sequence Summary FCFS=1 – 2 – 3 – 4 SPT=1 – 3 – 2 – 4 EDD=4 – 2 – 1 – 3 Example 17.2

72. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Multiple-Dimension Rules 12.315106.12.460.89 210.51027.81.281.10 36.2201214.51.380.46 415.68510.20.78- 0.44 OperationTime Time atRemainingNumber of Engineto Due DateOperationsShop Time JobLathe (hr)(Days)RemainingRemainingCRS/RO CR Sequence= 4 – 2 – 3 – 1 S/RO Sequence= 4 – 3 – 1 – 2 Avg Flow Time 17.17516.10026.17527.15024.025 Avg Early Time 3.4256.050000 Avg Past Due 7.3508.90012.92513.90010.775 Avg WIP 1.9861.8613.0263.1292.777 Avg Total Inv 2.3822.5613.0263.1292.777 ShortestSlack per ProcessingEarliestCriticalRemaining FCFSTimeDue DateRatioOperation Priority Rule Summary Example 17.2

73. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Simulation

74. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Simulation Precision AutoBody Process Times TIME TO PERFORM 1.Frame straightening *82 2a.Body repair, major damage *164 2b.Body repair, minor damage *82 3.Paint preparation1 1 / 4 1 / 3 4.Paint application (two coats)1 1 / 2 1 / 2 6.Clean up3 1 / 2 OPERATIONAverage (hr)Standard Deviation Example 17.3

75. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Simulation Figure 17.4

76. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Simulation Figure 17.5

77. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Simulation Figure 17.6

78. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Johnson’s Rule

79. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Johnson’s Rule Time (hr) MotorWorkstation 1Workstation 2 M11222 M245 M353 M41516 M5108 Example 17.4

80. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Johnson’s Rule Time (hr) MotorWorkstation 1Workstation 2 M11222 M245 M353 M41516 M5108 Sequence = Example 17.4

81. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Johnson’s Rule Time (hr) MotorWorkstation 1Workstation 2 M11222 M245 M353 M41516 M5108 Sequence = Example 17.4

82. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Johnson’s Rule Time (hr) MotorWorkstation 1Workstation 2 M11222 M245 M353 M41516 M5108 Sequence =M3 Example 17.4

83. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Johnson’s Rule Time (hr) MotorWorkstation 1Workstation 2 M11222 M245 M353 M41516 M5108 Sequence =M3 Example 17.4

84. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Johnson’s Rule Time (hr) MotorWorkstation 1Workstation 2 M11222 M245 M353 M41516 M5108 Sequence =M3 Example 17.4

85. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Johnson’s Rule Time (hr) MotorWorkstation 1Workstation 2 M11222 M245 M353 M41516 M5108 Sequence =M3 Example 17.4

86. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Johnson’s Rule Time (hr) MotorWorkstation 1Workstation 2 M11222 M245 M353 M41516 M5108 Sequence =M2M3 Example 17.4

87. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Johnson’s Rule Time (hr) MotorWorkstation 1Workstation 2 M11222 M245 M353 M41516 M5108 Sequence =M2M3 Example 17.4

88. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Johnson’s Rule Time (hr) MotorWorkstation 1Workstation 2 M11222 M245 M353 M41516 M5108 Sequence =M2M3 Example 17.4

89. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Johnson’s Rule Time (hr) MotorWorkstation 1Workstation 2 M11222 M245 M353 M41516 M5108 Sequence =M2M3M5- Example 17.4

90. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Johnson’s Rule Time (hr) MotorWorkstation 1Workstation 2 M11222 M245 M353 M41516 M5108 Sequence =M2M3M5- Example 17.4

91. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Johnson’s Rule Time (hr) MotorWorkstation 1Workstation 2 M11222 M245 M353 M41516 M5108 Sequence =M1M2M3M5-- Example 17.4

92. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Johnson’s Rule Time (hr) MotorWorkstation 1Workstation 2 M11222 M245 M353 M41516 M5108 Sequence =M1M2M3M5-- Example 17.4

93. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Johnson’s Rule Time (hr) MotorWorkstation 1Workstation 2 M11222 M245 M353 M41516 M5108 Sequence =M1M2M3M4M5---- Example 17.4

94. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Johnson’s Rule Time (hr) MotorWorkstation 1Workstation 2 M11222 M245 M353 M41516 M5108 Sequence =M1M2M3M4M5---- Example 17.4

95. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Johnson’s Rule Time (hr) MotorWorkstation 1Workstation 2 M11222 M245 M353 M41516 M5108 Sequence =M1M2M3M4M5---- Workstation 051015202530 Day 35404550556065 2 1 Example 17.4

96. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Johnson’s Rule Time (hr) MotorWorkstation 1Workstation 2 M11222 M245 M353 M41516 M5108 Sequence =M1M2M3M4M5---- Workstation M2 (4) M1 (12) M4 (15) M5 (10) M3 (5) Idle—available for further work 051015202530 Day 35404550556065 2 1 Example 17.4

97. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Johnson’s Rule Time (hr) MotorWorkstation 1Workstation 2 M11222 M245 M353 M41516 M5108 Sequence =M1M2M3M4M5---- Workstation M2 (4) M1 (12) M4 (15) M5 (10) M3 (5) Idle—available for further work 051015202530 Day 35404550556065 2 1 Example 17.4

98. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Johnson’s Rule Time (hr) MotorWorkstation 1Workstation 2 M11222 M245 M353 M41516 M5108 Sequence =M1M2M3M4M5---- Workstation M2 (4) M1 (12) M4 (15) M5 (10) M3 (5) Idle—available for further work 051015202530 Day 35404550556065 Idle2 1 Example 17.4

99. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Johnson’s Rule Time (hr) MotorWorkstation 1Workstation 2 M11222 M245 M353 M41516 M5108 Sequence =M1M2M3M4M5---- Workstation M2 (4) M1 (12) M4 (15) M5 (10) M3 (5) Idle—available for further work 051015202530 Day 35404550556065 Idle2 M2 (5) 1 Example 17.4

100. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Johnson’s Rule Time (hr) MotorWorkstation 1Workstation 2 M11222 M245 M353 M41516 M5108 Sequence =M1M2M3M4M5---- Workstation M2 (4) M1 (12) M4 (15) M5 (10) M3 (5) Idle—available for further work 051015202530 Day 35404550556065 Idle2 M2 (5) 1 Example 17.4

101. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Johnson’s Rule Time (hr) MotorWorkstation 1Workstation 2 M11222 M245 M353 M41516 M5108 Sequence =M1M2M3M4M5---- Workstation M2 (4) M1 (12) M4 (15) M5 (10) M3 (5) Idle—available for further work 051015202530 Day 35404550556065 Idle2 M2 (5) Idle 1 Example 17.4

102. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Johnson’s Rule Time (hr) MotorWorkstation 1Workstation 2 M11222 M245 M353 M41516 M5108 Sequence =M1M2M3M4M5---- Workstation M2 (4) M1 (12) M4 (15) M5 (10) M3 (5) Idle—available for further work 051015202530 Day 35404550556065 Idle2 M2 (5) M1 (22) Idle 1 Example 17.4

103. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Johnson’s Rule Time (hr) MotorWorkstation 1Workstation 2 M11222 M245 M353 M41516 M5108 Sequence =M1M2M3M4M5---- Workstation M2 (4) M1 (12) M4 (15) M5 (10) M3 (5) Idle—available for further work 051015202530 Day 35404550556065 Idle2 M2 (5) M1 (22) M4 (16) Idle 1 Example 17.4

104. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Johnson’s Rule Time (hr) MotorWorkstation 1Workstation 2 M11222 M245 M353 M41516 M5108 Sequence =M1M2M3M4M5---- Workstation M2 (4) M1 (12) M4 (15) M5 (10) M3 (5) Idle—available for further work 051015202530 Day 35404550556065 Idle2 M2 (5) M1 (22) M4 (16) M5 (8) Idle 1 Example 17.4

105. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Johnson’s Rule Time (hr) MotorWorkstation 1Workstation 2 M11222 M245 M353 M41516 M5108 Sequence =M1M2M3M4M5---- Workstation M2 (4) M1 (12) M4 (15) M5 (10) M3 (5) Idle—available for further work 051015202530 Day 35404550556065 Idle2 M2 (5) M1 (22) M4 (16) M5 (8) M3 (3) Idle 1 Example 17.4

106. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Sequencing Johnson’s Rule Time (hr) MotorWorkstation 1Workstation 2 M11222 M245 M353 M41516 M5108 Sequence =M1M2M3M4M5---- Workstation M2 (4) M1 (12) M4 (15) M5 (10) M3 (5) Idle—available for further work 051015202530 Day 35404550556065 Idle2 M2 (5) M1 (22) M4 (16) M5 (8) M3 (3) Idle 1 Example 17.4

107. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Scheduling Services

108. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Scheduling Services DayMTWThFSSu Number of employees648910*32 Required employees Example 17.5

109. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Scheduling Services DayMTWThFSSu Number of employees648910*32 Employee1 Required employees Example 17.5

110. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Scheduling Services DayMTWThFSSu Number of employees648910*32 Employee1XXXXX Required employees Example 17.5

111. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Scheduling Services DayMTWThFSSu Number of employees648910*32 Employee1XXXXX Requirement53789*32 Required employees Example 17.5

112. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Scheduling Services DayMTWThFSSu Number of employees648910*32 Employee1XXXXX Requirement53789*32 Employee2XXXXX Required employees Example 17.5

113. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Scheduling Services DayMTWThFSSu Number of employees648910*32 Employee1XXXXX Requirement53789*32 Employee2XXXXX Requirement42678*32 Required employees Example 17.5

114. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Scheduling Services DayMTWThFSSu Number of employees648910*32 Employee1XXXXX Requirement53789*32 Employee2XXXXX Requirement42678*32 Employee3XXXXX Required employees Example 17.5

115. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Scheduling Services DayMTWThFSSu Number of employees648910*32 Employee1XXXXX Requirement53789*32 Employee2XXXXX Requirement42678*32 Employee3XXXXX Requirement31567*32 Required employees Example 17.5

116. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Scheduling Services DayMTWThFSSu Number of employees648910*32 Employee1XXXXX Requirement53789*32 Employee2XXXXX Requirement42678*32 Employee3XXXXX Requirement31567*32 Employee4XXXXX Required employees Example 17.5

117. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Scheduling Services DayMTWThFSSu Number of employees648910*32 Employee1XXXXX Requirement53789*32 Employee2XXXXX Requirement42678*32 Employee3XXXXX Requirement31567*32 Employee4XXXXX Requirement31456*21 Required employees Example 17.5

118. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Scheduling Services DayMTWThFSSu Number of employees648910*32 Employee1XXXXX Requirement53789*32 Employee2XXXXX Requirement42678*32 Employee3XXXXX Requirement31567*32 Employee4XXXXX Requirement31456*21 Employee5XXXXX Required employees Example 17.5

119. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Scheduling Services DayMTWThFSSu Requirement20345*21 Required employees Example 17.5

120. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Scheduling Services DayMTWThFSSu Requirement20345*21 Employee6XXXXX Required employees Example 17.5

121. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Scheduling Services DayMTWThFSSu Requirement20345*21 Employee6XXXXX Requirement20234*10 Employee7XXXXX Required employees Example 17.5

122. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Scheduling Services DayMTWThFSSu Requirement20345*21 Employee6XXXXX Requirement20234*10 Employee7XXXXX Requirement10123*10 Employee8XXXXX Required employees Example 17.5

123. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Scheduling Services DayMTWThFSSu Requirement20345*21 Employee6XXXXX Requirement20234*10 Employee7XXXXX Requirement10123*10 Employee8XXXXX Requirement00012*10 Employee9XXXXX Required employees Example 17.5

124. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Scheduling Services DayMTWThFSSu Requirement20345*21 Employee6XXXXX Requirement20234*10 Employee7XXXXX Requirement10123*10 Employee8XXXXX Requirement00012*10 Employee9XXXXX Requirement00001*00 Employee10XXXXX Required employees Example 17.5

125. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Scheduling Services DayMTWThFSSu Employee1XXXXX offoff Employee2XXXXX offoff Employee3XXXXX offoff Employee4 offoff XXXXX Employee5XXXXX offoff Employee6 offoff XXXXX Employee7XXXXX offoff Employee8XXXXX offoff Employee9 off XXXXX off Employee10XXXXX offoff Final Schedule Example 17.5

126. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Scheduling Services DayMTWThFSSu Employee1XXXXX offoff Employee2XXXXX offoff Employee3XXXXX offoff Employee4 offoff XXXXX Employee5XXXXX offoff Employee6 offoff XXXXX Employee7XXXXX offoff Employee8XXXXX offoff Employee9 off XXXXX off Employee10XXXXX offoff Final Schedule Example 17.5 DayMTWThFSSu TOTAL

127. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Scheduling Services DayMTWThFSSu Employee1XXXXX offoff Employee2XXXXX offoff Employee3XXXXX offoff Employee4 offoff XXXXX Employee5XXXXX offoff Employee6 offoff XXXXX Employee7XXXXX offoff Employee8XXXXX offoff Employee9 off XXXXX off Employee10XXXXX offoff Final Schedule Example 17.5 DayMTWThFSSu TOTAL Capacity, C771010103250

128. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Scheduling Services DayMTWThFSSu Employee1XXXXX offoff Employee2XXXXX offoff Employee3XXXXX offoff Employee4 offoff XXXXX Employee5XXXXX offoff Employee6 offoff XXXXX Employee7XXXXX offoff Employee8XXXXX offoff Employee9 off XXXXX off Employee10XXXXX offoff Final Schedule Example 17.5 DayMTWThFSSu TOTAL Capacity, C771010103250 Requirements, R6489103242

129. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Scheduling Services DayMTWThFSSu Employee1XXXXX offoff Employee2XXXXX offoff Employee3XXXXX offoff Employee4 offoff XXXXX Employee5XXXXX offoff Employee6 offoff XXXXX Employee7XXXXX offoff Employee8XXXXX offoff Employee9 off XXXXX off Employee10XXXXX offoff Final Schedule DayMTWThFSSu TOTAL Capacity, C771010103250 Requirements, R6489103242 Slack, C – R13210008 Example 17.5

130. To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Sixth Edition © 2002 Prentice Hall, Inc. All rights reserved. Solved Problem 3 Figure 17.8 DredgeEHGFBJICDA IncinerateEHGFBJICDA Storage basin