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Operations Management

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Presentation on theme: "Operations Management"— Presentation transcript:

1 Operations Management
William J. Stevenson 8th edition

2 17 Project Management CHAPTER
Operations Management, Eighth Edition, by William J. Stevenson Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved. McGraw-Hill/Irwin

3 Projects Build A A Done Build B B Done Build C C Done Build D Ship JAN FEB MAR APR MAY JUN On time! Unique, one-time operations designed to accomplish a specific set of objectives in a limited time frame.

4 Project Management How is it different? Why is it used?
Limited time frame Narrow focus, specific objectives Less bureaucratic Why is it used? Special needs Pressures for new or improves products or services

5 Project Management What are the Key Metrics
Time Cost Performance objectives What are the Key Success Factors? Top-down commitment Having a capable project manager Having time to plan Careful tracking and control Good communications

6 Project Management What are the Major Administrative Issues?
Executive responsibilities Project selection Project manager selection Organizational structure Organizational alternatives Manage within functional unit Assign a coordinator Use a matrix organization with a project leader

7 Project Management What are the tools? Work breakdown structure
Network diagram Gantt charts Risk management

8 Planning and Scheduling
MAR APR MAY JUN JUL AUG SEP OCT NOV DEC Locate new facilities Interview staff Hire and train staff Select and order furniture Remodel and install phones Move in/startup Gantt Chart

9 Key Decisions Deciding which projects to implement
Selecting a project manager Selecting a project team Planning and designing the project Managing and controlling project resources Deciding if and when a project should be terminated

10 Project Manager Responsible for: Work Quality Human Resources Time
Communications Costs

11 Ethical Issues Temptation to understate costs Withhold information
Misleading status reports Falsifying records Comprising workers’ safety Approving substandard work

12 Project Life Cycle Concept Feasibility Planning Execution Termination
Management

13 Work Breakdown Structure
Figure 17.2 Project X Level 1 Level 2 Level 3 Level 4

14 PERT and CPM PERT: Program Evaluation and Review Technique
CPM: Critical Path Method Graphically displays project activities Estimates how long the project will take Indicates most critical activities Show where delays will not affect project

15 The Network Diagram Network (precedence) diagram
Activity-on-arrow (AOA) Activity-on-node (AON) Activities Events

16 The Network Diagram (cont’d)
Path Sequence of activities that leads from the starting node to the finishing node Critical path The longest path; determines expected project duration Critical activities Activities on the critical path Slack Allowable slippage for path; the difference the length of path and the length of critical path

17 Project Network – Activity on Arrow
Figure 17.4 1 2 3 4 5 6 Locate facilities Order furniture Furniture setup Interview Hire and train Remodel Move in AOA

18 Project Network – Activity on Node
Figure 17.4 1 2 3 5 6 Locate facilities Order furniture Furniture setup Interview Remodel Move in 4 Hire and train 7 S AON

19 Example 1 Figure 17.5 1 2 3 4 5 6 Deterministic time estimates 6 weeks
Locate facilities Order furniture Furniture setup Interview Hire and train Remodel Move in Deterministic time estimates

20 Example 1 Solution Critical Path

21 Computing Algorithm Network activities Used to determine
ES: early start EF: early finish LS: late start LF: late finish Used to determine Expected project duration Slack time Critical path

22 Time-cost Trade-offs: Crashing
Crash – shortening activity duration Procedure for crashing Crash the project one period at a time Only an activity on the critical path Crash the least expensive activity Multiple critical paths: find the sum of crashing the least expensive activity on each critical path

23 Project Crashing Crashing a project involves paying more money to complete a project more quickly. Since the critical path determines the length of a project, it makes sense to reduce the length of activities on the critical path. CP activities should be reduced until the project is reduced to the desired length or you are paying more per day than you save. If you have multiple CPs, they should be shortened simultaneously.

24 Time-Cost Trade-Offs: Crashing
Figure 17.11 Total cost Shorten Cumulative cost of crashing Expected indirect costs Optimum CRASH

25 Example 7 6 a 4 d 5 c 10 b 9 e 2 f

26 Advantages of PERT Forces managers to organize
Provides graphic display of activities Identifies Critical activities Slack activities 1 2 3 4 5 6

27 Limitations of PERT Important activities may be omitted
Precedence relationships may not be correct Estimates may include a fudge factor May focus solely on critical path 1 2 3 4 5 6 142 weeks

28 Technology for Managing Projects
Computer aided design (CAD) Groupware (Lotus Notes) Project management software CA Super Project Harvard Total Manager MS Project Sure Track Project Manager Time Line

29 Advantages of PM Software
Imposes a methodology Provides logical planning structure Enhances team communication Flag constraint violations Automatic report formats Multiple levels of reports Enables what-if scenarios Generates various chart types

30 Project Risk Management
Risk: occurrence of events that have undesirable consequences Delays Increased costs Inability to meet specifications Project termination

31 Risk Management Identify potential risks Analyze and assess risks
Work to minimize occurrence of risk Establish contingency plans

32 Summary Projects are a unique set of activities
Projects go through life cycles PERT and CPM are two common techniques Network diagrams Project management software available

33 CHAPTER 17 Additional PowerPoint slides contributed by Geoff Willis, University of Central Oklahoma.

34 Definition/Example Alton Bridge
Projects — Concepts PM1 Definition/Example Alton Bridge


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