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___________________________________________________________________________ Operations Research  Jan Fábry Project Management.

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Presentation on theme: "___________________________________________________________________________ Operations Research  Jan Fábry Project Management."— Presentation transcript:

1 ___________________________________________________________________________ Operations Research  Jan Fábry Project Management

2 ___________________________________________________________________________ Operations Research  Jan Fábry  Project Activity 1 Activity 2 Activity 3 Activity 4 Activity 6 Activity 7 Activity 5

3 Project Management ___________________________________________________________________________ Operations Research  Jan Fábry Activity 1 Activity 2 Activity 3 Activity 4 Activity 6 Activity 7 Activity 5 Activity  Node NETWORK – graphical representation of the project

4 Project Management ___________________________________________________________________________ Operations Research  Jan Fábry Activity  Arc NETWORK – graphical representation of the project 1 3 2 4 5 6 1 3 4 6 5 8 2 2 6 7 ACT 1 ACT 11 ACT 2 ACT 3 ACT 4 ACT 5 ACT 6 ACT 7 ACT 8 ACT 9 ACT 10

5 ___________________________________________________________________________ Operations Research  Jan Fábry  Event 1 2 3 Activity A Design a car Activity B Make a prototype Start point of A Finish point of A Start point of B Finish point of B Project Management

6 ___________________________________________________________________________ Operations Research  Jan Fábry 1 2 3 Activity A Design a car Activity B Make a prototype Project Management Activity A immediately PRECEDES activity B Activity B immediately SUCCEEDS activity A

7 ___________________________________________________________________________ Operations Research  Jan Fábry Project Management Activity A is the predecessor of Activity B and C 1 2 3 Activity A Design a car Activity B Make a prototype 4 Activity C Computer presentation

8 ___________________________________________________________________________ Operations Research  Jan Fábry Project Management 1 2 3 4 Activity A Design a car Activity B Make a prototype Activity C Computer presentation 5 Activity E Prototype test Activity D Prototype presentation Dummy activity Activity E (Prototype test) follows Activity B Activity D (Prototype presentation) follows Activity B and C

9 ___________________________________________________________________________ Operations Research  Jan Fábry Project Management - time Activity Requirements - money (cost) - machines - people - material

10 ___________________________________________________________________________ Operations Research  Jan Fábry Project Management Phases of Project Management Network  Planning  Controlling  Scheduling Start and finish times for each activity Finish time of project Periodic progress reports

11 ___________________________________________________________________________ Operations Research  Jan Fábry Project Management Methods Deterministic time Critical Path Method (CPM) Probabilistic time Program Evaluation Review Technique (PERT)

12 ___________________________________________________________________________ Operations Research  Jan Fábry CPM Project Management

13 ___________________________________________________________________________ Operations Research  Jan Fábry Project Management CPM  Finish time of the project  Start and finish times of each activity  A critical path consisting of critical activities  Non-critical activities and their possible delay

14 ___________________________________________________________________________ Operations Research  Jan Fábry Project Management Example - Music DM, Inc.  Christmas compilation of Czech carols  11 activities: 1) Songs Selection 2) Mastering 3) Promotion Material Elaborating CPM

15 ___________________________________________________________________________ Operations Research  Jan Fábry Project Management Example - Music DM, Inc.  11 activities: 4) Customers Analysis 5) Promotion Material Production 6) Make CD Copies 7) Customers Selection CPM

16 ___________________________________________________________________________ Operations Research  Jan Fábry Project Management Example - Music DM, Inc.  11 activities: 8) Data to Printing House 9) Promotion Material to Printing House 10) Laser Print 11) Mailing CPM

17 ___________________________________________________________________________ Operations Research  Jan Fábry Project Management Example - Music DM, Inc. Activity DescriptionDurationPredecessors A Songs Selection 15None BMastering8A C Promotion Material Elaborating 6A D Customers Analysis 7A E Promotion Material Production 4 C, D F Promotion Material to PH 5E G Customers Selection 3D CPM

18 ___________________________________________________________________________ Operations Research  Jan Fábry Project Management Example - Music DM, Inc. Activity DescriptionDurationPredecessors H Make CD Copies 12 B, D I Data to PH 3G J Laser Print 9 F, I KMailing8 H, J  All the envelopes have to be delivered until December 12  Objective: set the starting date of the project CPM

19 ___________________________________________________________________________ Operations Research  Jan Fábry Project Management Example - Music DM, Inc. Solution - CPM 1) Construct the network 2) Event analysis - forward pass - backward pass 3) Activity analysis - critical activities - noncritical activities CPM

20 ___________________________________________________________________________ Operations Research  Jan Fábry Project Management Example - Music DM, Inc. 1) Construct the network One start node & one end node Each activity  one arc Two nodes are connected maximally by one arc CPM

21 ___________________________________________________________________________ Operations Research  Jan Fábry Project Management Example - Music DM, Inc. 1) Construct the network i j i < j 2 3 3 2 CPM

22 ___________________________________________________________________________ Operations Research  Jan Fábry Project Management Example - Music DM, Inc. Activity DescriptionDurationPredecessors A Songs Selection 15None BMastering8A C Promotion Material Elaborating 6A D Customers Analysis 7A E Promotion Material Production 4 C, D F Promotion Material to PH 5E G Customers Selection 3D CPM

23 ___________________________________________________________________________ Operations Research  Jan Fábry Project Management Example - Music DM, Inc. Activity DescriptionDurationPredecessors H Make CD Copies 12 B, D I Data to PH 3G J Laser Print 9 F, I KMailing8 H, J CPM

24 ___________________________________________________________________________ Operations Research  Jan Fábry Project Management Example - Music DM, Inc. 1 2 4 3 5 6 9 7 10 8 A B D C D1D1 E FH D2D2 GI J KCPM

25 ___________________________________________________________________________ Operations Research  Jan Fábry Project Management Example - Music DM, Inc. 1 2 4 3 5 6 9 7 10 8 15 8 7 6 0 4 512 0 33 9 8CPM

26 ___________________________________________________________________________ Operations Research  Jan Fábry Project Management Example - Music DM, Inc. 2) Event analysis - forward pass The earliest event time for a node is the earliest time at which all the preceding activities have been completed. j ET j CPM

27 ___________________________________________________________________________ Operations Research  Jan Fábry Project Management Example - Music DM, Inc. 2) Event analysis - forward pass ET 1 ET 1  ET 2 ET 2  ET 3 ET 3 …  ET n Ascending order: The earliest event time for completing a project is the earliest time of the last event. T = ET n CPM

28 ___________________________________________________________________________ Operations Research  Jan Fábry Project Management Example - Music DM, Inc. 2) Event analysis - backward pass The latest event time for a node is the latest time at which the event can occur without delaying the determined completion time of the project. i LT i CPM

29 ___________________________________________________________________________ Operations Research  Jan Fábry Project Management Example - Music DM, Inc. 2) Event analysis - backward pass LT 1  LT 2  LT 3  …  LT n Descending order: The latest event time for completing a project can be set in the planning process or can be considered as the earliest event time for completing a project. LT n = T = ET n or LT n = T PL > T CPM

30 ___________________________________________________________________________ Operations Research  Jan Fábry Project Management Example - Music DM, Inc. 3) Activity analysis Total float: i LT i ET i j ET j LT j t ij CPM

31 ___________________________________________________________________________ Operations Research  Jan Fábry Project Management Example - Music DM, Inc. 3) Activity analysis Critical activity: TF ij = 0 TF ij = T PL - T if LT n = T = ET n if LT n = T = ET n if LT n = T PL > T if LT n = T PL > T Noncritical activity: TF ij > 0 TF ij > T PL - T if LT n = T = ET n if LT n = T = ET n if LT n = T PL > T if LT n = T PL > T CPM

32 ___________________________________________________________________________ Operations Research  Jan Fábry Project Management Example - Music DM, Inc. 3) Activity analysis Critical path: 1 2 4 3 5 6 9 7 10 8 A B D C D1D1 E F H D2D2 GI J KCPM

33 ___________________________________________________________________________ Operations Research  Jan Fábry Project Management Example - Music DM, Inc. 3) Activity analysis Noncritical activity 1) Start of the activity can be postponed 2) Duration of the activity can be extended 3) Combination of 1 and 2 CPM


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