Bechtel Project Planing Example

1. Operations
Management
Project Management
Chapter 16
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2. Outline
♦ Global Company Profile: Bechtel Group
♦ The Strategic Importance of Project
Management
♦ Project Planning
♦ The Project Manager
♦ Work Breakdown Structure
♦ Project Scheduling
♦ Project Controlling
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3. Outline - continued
♦ Project Management Techniques:
PERT and CPM
♦ The Framework of PERT and CPM
♦ Activities, Events, and Networks
♦ Dummy Activities and Events
♦ PERT and Activity Time Estimates
♦ Critical Path Analysis
♦ The Probability of Project Completion
♦ Case Study of PERT: Anderson-Touche Consulting
Services
♦ Cost-Time Tradeoffs and Project Crashing
♦ A Critique of PERT and CPM
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4. Learning Objectives
When you complete this chapter, you should
be able to :
♦ Identify or Define:
♦ Work breakdown structure
♦ Critical path
♦ Event
♦ Activity
♦ Dummy activity
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5. Learning Objectives - continued
When you complete this chapter, you should
be able to :
Describe or Explain:
♦ The role of the project manager
♦ Program evaluation and review technique (PERT)
♦ Critical path method (CPM)
♦ Crashing a project
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6. Bechtel
♦ Asked by Kuwait to begin rebuilding after
Desert Storm
♦ 650 wells ablaze, others uncapped
♦ No water, electricity, food or facilities
♦ Land mines! Bombs! Grenades!
♦ Many fires inaccessible because of oil-
covered roads
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7. Bechtel
♦ Project required:
♦ Storage, docking, and warehousing facilities at
Dubai
♦ 125,000 tons of equipment and supplies
♦ 150 kilometers of pipeline capable of delivering
20,000,000 gallons of water per day to the fire site
♦ more than 200 lagoons with 1,000,000 gals of
seawater
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8. Bechtel
Other Projects
♦ Building and running a rail line between
London and the Channel Tunnel ($4.6 billion)
♦ Developing an oil pipeline from the Caspian
Sea region to Russia ($850 million)
♦ Expanding the Dubai Airport in the UAE
($600 million), and the Miami Airport in
Florida $2 billion)
♦ Building liquid natural gas plants in Yemen
and in Trinidad, West Indies
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9. Bechtel
Other Projects - continued
♦ Building liquid natural gas plants in Yemen
$2 billion) and in Trinidad, West Indies ($1
billion)
♦ Building a new subway for Athens, Greece
($2.6 billion)
♦ Constructing a natural gas pipeline in
Thailand ($700 million)
♦ Building a highway to link the north and
south of Croatia ($303 million)
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10. Strategic Importance of
Project Management
♦ Bechtel Kuwait Project:
♦ 8,000 workers
♦ 1,000 construction professionals
♦ 100 medical personnel
♦ 2 helicopter evacuation teams
♦ 6 full-service dining halls
♦ 27,000 meals per day
♦ 40 bed field hospital
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11. Strategic Importance of
Project Management - continued
♦ Microsoft Windows 2000 Project:
♦ hundreds of programmers
♦ millions of lines of code
♦ millions of dollars cost
♦ Ford Redesign of Mustang Project:
♦ 450 member project team
♦ Cost $700-million
♦ 25% faster and 30% cheaper than comparable
project at Ford
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12. Project Characteristics
♦ Single unit
♦ Many related activities
♦ Difficult production planning and inventory
control
♦ General purpose equipment
♦ High labor skills
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13. An Example
♦ Building construction
© 1995 Corel Corp.
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14. An Example
♦ Research project
© 1995
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Corel Corp.

15. Management of Large Projects
♦ Planning - goal setting, project definition,
team organization
♦ Scheduling - relating people, money, and
supplies to specific activities and activities
to one and other
♦ Controlling - monitoring resources, costs,
quality, and budgets; revising plans and
shifting resources to meet time and cost
demands
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16. Project Management Activities
Planning Scheduling
Objectives Project
Resources activities
Work break- Start & end
down schedule times
Organization Network
Controlling
Monitor, compare,
revise, action
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17. Project Planning, Scheduling,
and Controlling
Project Planning
Time/cost estimates
1. Setting goals
Budgets
2. Defining the project
Engineering diagrams
3. Tying needs into timed project
Cash flow charts
activities
Material availability details
4. Organizing the team
Project Scheduling
1. Tying resources to specific CPM/PERT
activities Gantt charts
2. Relating activities to each other Milestone charts
3. Updating and revising on a Cash flow schedules
regular basis
Project Controlling
Reports
1. Monitoring resources, costs, quality,
• budgets
and budgets
• delayed activities
2. Revising and changing plans
• slack activities
3. Shifting resources to meet demands
Before Project During Project
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18. New Figure 16.1
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19. Project Planning
♦ Establishing objectives
♦ Defining project
♦ Creating work breakdown
structure
♦ Determining resources
♦ Forming organization
© 1995 Corel Corp.
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20. Project Organization
Works Best When
♦ Work can be defined with a specific goal and
deadline
♦ The job is unique or somewhat unfamiliar to
the existing organization
♦ The work contains complex interrelated
tasks requiring specialized skills
♦ The project is temporary but critical to the
organization
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21. Project Organization
♦ Often temporary structure
♦ Uses specialists from entire company
♦ Headed by project manager
♦ Coordinates activities
♦ Monitors schedule Eng. Eng.
& costs Mkt.
Acct.
♦ Permanent
structure called Mgr.
‘matrix organization’
© 1995
Corel Corp.
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22. A Sample Project Organization
President
Human Quality
Sales Finance Engineering Production
Factors Control
Project 1 Project
Manager
Propulsion Test
Physiologist Technician
Engineer Engineer
Project 2 Project
Manager
Structural Inspection
Psychologist Technician
Engineer Technician
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23. Matrix Organization
Mkt Oper Eng Fin
Project 1  
Project 2    
Project 3  
Project 4   
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24. Types of Organizations for
Development Projects
(A) Functional Organization (B) Lightweight Project Manager
FM FM FM FM FM
Working
Engineers Project Liaison
Manager People
(PM)
(C) Heavyweight Project Manager
(D) Tiger Team Organization
FM FM FM FM FM FM
PM PM
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25. The Role of
the Project Manager
Project Plan
and Schedule
Revisions and
Updates
Project Project
Manager Team
Information
regarding times, Performance
costs, problems, Reports
delays Feedback Loop
Top
Resources
Management
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26. Work Breakdown Structure
♦ 1. Project
♦ 2.. Major tasks in the project
♦ 3. Subtasks in the major tasks
♦ 4. Activities
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27. Project Scheduling
♦ Identifying precedence
relationships
♦ Sequencing activities © 1995 Corel Corp.
♦ Determining activity
times & costs
♦ Estimating material &
worker requirements PERT
♦ Determining critical
activities Des
Tes
Buil
ign
d
t
J
M
Mo
A
nth
M
F
J
J
Acti
v ity
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28. Purposes of Project Scheduling
♦ Shows the relationship of each activity to
others and to the project as a whole
♦ Identifies the precedence relationships
among activities
♦ Encourages the setting of realistic time and
cost estimates for each activity
♦ Helps make better use of people, money, and
material resources by identifying critical
bottlenecks
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29. Project Scheduling Techniques
♦ Gantt chart
♦ Critical Path Method (CPM)
♦ Program Evaluation & Review
Technique (PERT)
© 1984-1994 T/Maker Co.
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30. Gantt Chart
Time Period
Activity
J F M A M J J
Design
Build
Test
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31. Figure 16.4
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32. Project Control Reports
♦ Detailed cost breakdowns for each task
♦ Total program labor curves
♦ Cost distribution tables
♦ Functional cost and hour summaries
♦ Raw materials and expenditure forecasts
♦ Variance reports
♦ Time analysis reports
♦ Work status reports
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33. PERT and CPM
♦ Network techniques
♦ Developed in 1950’s
♦ CPM by DuPont for chemical plants
♦ PERT by U.S. Navy for Polaris missile
♦ Consider precedence relationships and
interdependencies
♦ Each uses a different estimate of activity
times
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34. Questions Which May Be Addressed by
PERT & CPM
♦ Is the project on schedule, ahead of schedule,
or behind schedule?
♦ Is the project over or under cost budget?
♦ Are there enough resources available to finish
the project on time?
♦ If the project must be finished in less than the
scheduled amount of time, what is the way to
accomplish this at least cost?
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35. The Six Steps Common to PERT &
CPM
Define the project and all of its significant activities
or tasks
Develop relationships among the activities. (Decide
which activities must precede and which must follow
others.)
Draw the network connecting all of the activities
Assign time and cost estimates to each activity
Compute the longest time path through the network.
This is called the critical path
Use the network to help plan, schedule, monitor, and
control the project
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36. Network Terms
Project: Obtain a college degree (B.S.)
Receive diploma
Register
Attend class,
study etc.
1 4 Years
2
Activity (Arrow)
Event (Node) Event (Node)
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37. Activity Relationships
2
A
1
B
3
A & B can occur
concurrently
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38. Activity Relationships
A must be done before
C & D can begin 2 D
A
C
1 4
B
3
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39. Activity Relationships
2 D
A
C
1 4
B
3 E
B & C must be done
before E can begin
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40. Dummy Activities
♦ Activities are defined by beginning & ending
events
♦ Example: Activity 2-3
♦ Every activity must have unique pair of
beginning & ending events
♦ Otherwise, computer programs get confused
♦ Dummy activities maintain precedence
♦ Consume no time or resources
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41. Dummy Activity Example
Incorrect 2-3
1-2 3-4
1 2 3 4
2-3
Correct
1-2 2-4 4-5
1 2 4 5
2-3 3-4: Dummy
3 activity
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42. PERT Activity Times
♦ 3 time estimates
Optimistic times (a)

♦
♦ Most-likely time (m)
♦ Pessimistic time (b)
♦ Follow beta distribution
♦ Expected time: t = (a + 4m + b)/6
♦ Variance of times: v = (b - a)2/6
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43. Critical Path Analysis
♦ Provides activity information
♦ Earliest (ES) & latest (LS) start
♦ Earliest (EF) & latest (LF) finish
♦ Slack (S): Allowable delay
♦ Identifies critical path
♦ Longest path in network
♦ Shortest time project can be completed
♦ Any delay on critical path activities delays project
♦ Critical path activities have 0 slack
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44. Earliest Start and Finish Steps
♦ Begin at starting event and work forward
♦ ES = 0 for starting activities
♦ ES is earliest start
♦ EF = ES + Activity time
♦ EF is earliest finish
♦ ES = Maximum EF of all predecessors for non-
starting activities
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45. Latest Start and Finish Steps
♦ Begin at ending event and work backward
♦ LF = Maximum EF for ending activities
♦ LF is latest finish; EF is earliest finish
♦ LS = LF - Activity time
♦ LS is latest start
♦ LF = Minimum LS of all successors for non-
ending activities
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46. Critical Path in Network
Pour Do interior
foundation & 2 work
frame 3 wk.
6 wk. Roof
1 2 wk. 4
3 wk.
Buy 3 Landscape
shrubs etc. 4 wk.
Critical path is longest path: 12 weeks.
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47. Gantt Chart
Earliest Start and Finish
Build House Project
1 1 1
Activity 1 2 3 4 5 6 7 8 9 0 1 2
1-2 Fdn & frame
1-3 Buy shrubs
2-3 Roof
2-4 Interior work
3-4 Landscape
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48. Gantt Chart
Latest Start and Finish
Build House Project
1 1 1
Activity 1 2 3 4 5 6 7 8 9 0 1 2
1-2 Fdn & frame
1-3 Buy shrubs
2-3 Roof
2-4 Interior work
3-4 Landscape
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49. Project Times
♦ Expected project time (T) Used to obtain
probability of project
♦ Sum of critical path activity
completion!
times, t
♦ Project variance (V)
♦ Sum of critical path activity
variances, v
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50. PERT Probability Example
You’re a project planner
for General Dynamics. A
submarine project has an © 1995
Corel Corp.
expected completion time
of 40 weeks, with a
standard deviation of 5
weeks. What is the
probability of finishing
the sub in 50 weeks or
less?
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51. Converting to Standardized
Variable
X - T 50 - 40
Z = = = 2 .0
s 5
Normal Standardized Normal
Distribution Distribution
s =5 sZ = 1
T = 40 50 X mz = 0 2.0 Z
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52. Obtaining the Probability
Standardized Normal Probability
Table (Portion)
Z .00 .01 .02
0.0 .50000 .50399 .50798 sZ =1
: : : :
2.0 .97725 .97784 .97831 .97725
2.1 .98214 .98257 .98300 mz = 0 2.0 Z
Probabilities in body
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53. Figure 16.9
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54. Benefits of PERT/CPM
♦ Useful at many stages of project
management
♦ Mathematically simple
♦ Uses graphical displays
♦ Gives critical path & slack time
♦ Provides project documentation
♦ Useful in monitoring costs
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55. Advantages of PERT/CPM
♦ Networks generated provide valuable project
documentation and graphically point out who
is responsible for various project activities
♦ Applicable to a wide variety of projects and
industries
♦ Useful in monitoring not only schedules, but
costs as well
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56. Limitations of PERT/CPM
♦ Assumes clearly defined, independent, &
stable activities
♦ Specified precedence relationships
♦ Activity times (PERT) follow
beta distribution
♦ Subjective time estimates
♦ Over-emphasis on critical path
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