Presentation is loading. Please wait.

Presentation is loading. Please wait.

5-1 Chapter 5 Scheduling the Project. 5-2 PERT AND CPM NETWORKS.

Similar presentations


Presentation on theme: "5-1 Chapter 5 Scheduling the Project. 5-2 PERT AND CPM NETWORKS."— Presentation transcript:

1 5-1 Chapter 5 Scheduling the Project

2 5-2 PERT AND CPM NETWORKS

3 5-3

4 5-4 History 4 Late 1950s –Program Evaluation and Review Technique (PERT) U.S. Navy, Booz-Allen Hamilton, and Lockeheed Aircraft Probabilistic activity durations –Critical Path Method (CPM) Dupont De Nemours Inc. Deterministic activity durations

5 5-5 The Language of PERT/CPM 4 Activity –task or set of tasks –use resources 4 Event –state resulting from completion of one or more activities –consume no resources or time –predecessor activities must be completed

6 5-6 The Language of PERT/CPM continued 4 Milestones –events that mark significant progress 4 Network –diagram of nodes and arcs –used to illustrate technological relationships 4 Path –series of connected activities between two events

7 5-7 The Language of PERT/CPM concluded 4 Critical Path –set of activities on a path that if delayed will delay completion of project 4 Critical Time –time required to complete all activities on the critical path

8 5-8 Building the Network 4 AOA Network 4 AON Network

9 5-9 Table 5-1 A Sample Set of Project Activities and Precedences

10 5-10 Figure 5-1 Stage 1 of a Sample AON Network

11 5-11 Figure 5-2 Stage 2 of a Sample AON Network

12 5-12 Figure 5-3 A Completed Sample AON Network

13 5-13 Figure 5-4 Stage 1 of a Sample AOA Network

14 5-14 Figure 5-5 Stage 2 of a Sample AOA Network

15 5-15 Figure 5-6a A Completed Sample AOA Network E

16 5-16 Figure 5-6b A Completed Sample AOA Network Showing the Use of a Dummy Task

17 5-17 Table 5-2 A Sample Problem for Finding the Critical Path and Critical Time

18 5-18 Figure 5-7 Stage 1 of a Sample Network

19 5-19 Figure 5-8 A Complete Network

20 5-20 Figure 5-9 Information Contents in an AON Node

21 5-21 Figure 5-10 The Critical Path and Time for Sample Project

22 5-22 Calculating Activity Slack 4 Slack or Float LST - EST = LFT - EFT = Slack

23 5-23 Figure 5-11 An MSP Version of PERT/CPM Network

24 5-24 Figure 5-12 A Modified Version of MSP Network

25 5-25 PROJECT UNCERTAINTY AND RISK MANAGEMENT

26 5-26 Calculating Probabilistic Activity Times 4 Three Time Estimates –pessimistic (a) –most likely (m) –optimistic (b)

27 5-27 Figure 5-13 The Statistical Distribution of all Possible Times for an Activity

28 5-28 Activity Expected Time and Variance

29 Percent Level 4 Task will be a or lower 5 percent of the time 4 Task will be b or greater 5 percent of the time

30 Percent Level 4 Task will be a or lower 10 percent of the time 4 Task will be b or greater 10 percent of the time

31 Percent Level (Alternative Interpretation) 4 Task will be between a and b 95 percent of the time

32 Percent Level (Alternative Interpretation) 4 Task will be between a and b 90 percent of the time

33 5-33 Figure 5-14 An AON Network

34 5-34 Figure 5-15 An MSP Version of a Sample Problem Network

35 5-35 Figure 5-16 A Pert/CPM Network for the Day Care Project

36 5-36 Figure 5-17 An MSP Calendar for the Day Care Project, 4/16/00 to 5/27/00

37 5-37 The Probability of Completing the Project on Time =NORMDIST(D, ,  ,TRUE)

38 5-38 Figure 5-18 The Statistical Distribution of Completion Times of the Path a-b-d-g-h

39 5-39 Selecting Risk and Finding D NORMINV(probability, ,  ,TRUE)

40 5-40 THE GANNT CHART

41 5-41 Figure 5-23 A Gantt Chart of a Sample Project

42 5-42 Figure 5-24 A Gantt Chart of Sample Project Showing Critical Path, Path Connections, Slack, EST, LST, EFT, and LFT

43 5-43 Figure 5-25 A Gantt Chart of a Day Care Project Showing Expected Durations, Critical Path, Milestone, and Resource Requirements

44 5-44 Figure 5-26 A Progress Report on a Day Care Project Showing Actual Progress Versus Baseline

45 5-45 EXTENSIONS TO PERT/CPM

46 5-46 Precedence Diagramming 4 Finish-to-start linkage 4 Start-to-start linkage 4 Finish-to-finish linkage 4 Start-to-finish linkage

47 5-47 Figure 5-27 Precedence Diagramming Conventions


Download ppt "5-1 Chapter 5 Scheduling the Project. 5-2 PERT AND CPM NETWORKS."

Similar presentations


Ads by Google