Critical Path Method Farrokh Alemi, Ph.D. Purpose of CPM Course on Project Management Finish fast Quantify progress Communicate effectively.
Download
Report
Transcript Critical Path Method Farrokh Alemi, Ph.D. Purpose of CPM Course on Project Management Finish fast Quantify progress Communicate effectively.
Critical Path Method
Farrokh Alemi, Ph.D.
Purpose of CPM
Course on Project Management
Finish fast
Quantify progress
Communicate effectively
Advantages and Disadvantages of
Formal Schedules
Saves time and money on large
complex projects
Effective communication tool
Too much work
Assessment of duration of tasks
Assessment of interdependencies
Course on Project Management
Resource Oriented and Time
Oriented Schedules
Course on Project Management
Resource oriented
Time oriented
Elements of a Critical Path
Chart
Course on Project Management
Activity
Precedence
Duration/cost
Elements of a Critical Path
Chart
Activity
Precedence
Duration/cost
Activity
Course on Project Management
Description
A
Select satisfaction survey tool
B
Print survey tool
C
Obtaining list of patients
D
Sample from list
E
Mail surveys to selected patients
F
Collect responses
G
Analyze data
Elements of a Critical Path
Chart
Course on Project Management
Activity
Precedence
Duration/cost
Elements of a Critical Path
Chart
Activity
Precedence
Duration/cost
Activity
Course on Project Management
Description
Precedents
A
Select satisfaction survey tool
B
Print survey tool
C
Select list of patients
D
Sample from list
C
E
Mail surveys to selected patients
D
F
Collect responses
E
G
Analyze data
F
A
Elements of a Critical Path
Chart
Course on Project Management
Activity
Precedence
Duration/cost
Elements of a Critical Path
Chart
Activity
Precedence
Duration/cost
Activity
Course on Project Management
Description
Precedents
Duration
A
Select satisfaction survey tool
2 weeks
B
Print survey tool
C
Select list of patients
D
Sample from list
C
1 week
E
Mail surveys to selected patients
D
2 weeks
F
Collect responses
E
4 weeks
G
Analyze data
F
3 weeks
A
3 weeks
1 week
Branch and Node Charts
Course on Project Management
Activity on branch
Activity on node
Activity In Node
Course on Project Management
A
B
E
C
D
Activity
Description
F
G
Precedents
A
Select satisfaction survey tool
B
Print survey tool
C
Obtain list of patients
D
Sample from list
E
Mail surveys to selected patients
F
Collect responses
E
G
Analyze data
F
A
C
D,B
Activity On Branches
A
1
3
B
5
E
6
F
7
G
End
Start
C
2
Activity
Course on Project Management
4
D
Description
Precedents
A
Select satisfaction survey tool
B
Print survey tool
C
Obtain list of patients
D
Sample from list
E
Mail surveys to selected patients
F
Collect responses
E
G
Analyze data
F
A
C
D,B
Earliest and Latest Start and
Finish Times
A
2
B
3
E
2
Start
C
Activity
Course on Project Management
1
D
1
Description
A
Select satisfaction survey tool
B
Print survey tool
C
Select list of patients
D
Sample from list
E
Mail surveys to patients
F
Collect responses
G
Analyze data
F
4
G
3 End
Earliest and Latest Start and
Finish Times
Forward pass calculates early start and finish
A
2
B
3
E
2
Start
C
Activity
Course on Project Management
1
D
1
Description
A
Select satisfaction survey tool
B
Print survey tool
C
Select list of patients
D
Sample from list
E
Mail surveys to patients
F
Collect responses
G
Analyze data
F
4
G
3 End
Earliest and Latest Start and
Finish Times
Backward pass calculates latest start and end times
A
2
B
3
E
2
Start
C
Activity
Course on Project Management
1
D
1
Description
A
Select satisfaction survey tool
B
Print survey tool
C
Select list of patients
D
Sample from list
E
Mail surveys to patients
F
Collect responses
G
Analyze data
F
4
G
3 End
Earliest and Latest Start and
Finish Times
Critical Path includes activities where earliest start
3
A 2time and
E 2timeFare4equal
G 3 End
B latest finish
Start
C
Activity
Course on Project Management
1
D
1
Description
A
Select satisfaction survey tool
B
Print survey tool
C
Select list of patients
D
Sample from list
E
Mail surveys to patients
F
Collect responses
G
Analyze data
Earliest and Latest Start and
Finish Times
Activities not on the critical path have “slack.”
The latest
finish 3time and the
earliest
date
4 start
A 2
E 2
G 3 End
B
F
are different
Start
C
Activity
Course on Project Management
1
D
1
Description
A
Select satisfaction survey tool
B
Print survey tool
C
Select list of patients
D
Sample from list
E
Mail surveys to patients
F
Collect responses
G
Analyze data
Earliest and Latest Start and
Finish Times
Start
Early
Finish
0
Late
A
2
B
3
E
2
Start
C
Activity
Course on Project Management
1
D
1
Description
A
Select satisfaction survey tool
B
Print survey tool
C
Select list of patients
D
Sample from list
E
Mail surveys to patients
F
Collect responses
G
Analyze data
F
4
G
3 End
Earliest and Latest Start and
Finish Times
Early
Start
Finish
0
2
Late
A
2
B
3
E
2
Start
C
Activity
Course on Project Management
1
D
1
Description
A
Select satisfaction survey tool
B
Print survey tool
C
Select list of patients
D
Sample from list
E
Mail surveys to patients
F
Collect responses
G
Analyze data
F
4
G
3 End
Earliest and Latest Start and
Finish Times
E
S
F
0
2
Early
Start
Finish
2
5
Late
L
A
2
B
3
E
2
Start
C
Activity
Course on Project Management
1
D
1
Description
A
Select satisfaction survey tool
B
Print survey tool
C
Select list of patients
D
Sample from list
E
Mail surveys to patients
F
Collect responses
G
Analyze data
F
4
G
3 End
Earliest and Latest Start and
Finish Times
E
S
F
0
2
E
L
S
F
2
5
L
2
A
B
3
E
2
F
4
G
3 End
Start
1
C
Early
Late
Course on Project Management
D
Start
Finish
2
5
1
Activity
Description
A
Select satisfaction survey tool
B
Print survey tool
C
Select list of patients
D
Sample from list
E
Mail surveys to patients
F
Collect responses
G
Analyze data
Earliest and Latest Start and
Finish Times
E
S
F
0
2
E
L
S
F
2
5
L
2
A
B
3
E
2
F
4
G
3 End
Start
1
C
E
L
Course on Project Management
S
F
0
1
D
1
Start
Early
Late
1
Finish
Activity
2
Description
A
Select satisfaction survey tool
B
Print survey tool
C
Select list of patients
D
Sample from list
E
Mail surveys to patients
F
Collect responses
G
Analyze data
Earliest and Latest Start and
Finish Times
E
S
F
0
2
E
L
S
F
2
5
Early
Finish
5
7
Late
L
2
A
Start
3
B
E
2
F
4
G
3 End
Start
1
C
E
L
Course on Project Management
S
F
0
1
1
D
E
L
S
F
1
2
Activity
Description
A
Select satisfaction survey tool
B
Print survey tool
C
Select list of patients
D
Sample from list
E
Mail surveys to patients
F
Collect responses
G
Analyze data
Earliest and Latest Start and
Finish Times
E
S
F
0
2
E
L
S
F
2
5
E
L
F
5
7
L
2
A
S
3
B
E
S
F
7
11
E
L
E
2
S
F
11
14
L
F
4
G
3 End
Start
1
C
E
L
Course on Project Management
S
F
0
1
1
D
E
L
S
F
1
2
Activity
Description
A
Select satisfaction survey tool
B
Print survey tool
C
Select list of patients
D
Sample from list
E
Mail surveys to patients
F
Collect responses
G
Analyze data
Earliest and Latest Start and
Finish Times
E
S
F
0
2
E
L
S
F
2
5
E
L
F
5
7
L
2
A
S
3
B
E
S
F
7
11
2
E
11
L
L
E
S
F
4
G
1
3 End
E
L
S
F
0
1
1
D
E
S
F
1
2
L
Latest finish is the minimum of latest start of
succeeding tasks. Latest start is the latest finish
minus duration.
Course on Project Management
14
14
Start
C
F
Earliest and Latest Start and
Finish Times
E
S
F
0
2
E
L
S
F
2
5
E
L
F
5
7
L
2
A
S
3
B
E
S
F
7
11
L
E
2
F
4
S
F
E
11
14
L
11
14
G
3 End
Start
1
C
E
L
S
F
0
1
1
D
E
S
F
1
2
L
Latest finish is the minimum of latest start of
succeeding tasks. Latest start is the latest finish
minus duration.
Course on Project Management
Earliest and Latest Start and
Finish Times
E
S
F
0
2
E
L
S
F
2
5
E
L
F
5
7
L
2
A
S
3
B
E
2
S F
S
F
E
7 11
E
11
14
L
7 11
L
11
14
F
4
G
3 End
Start
1
C
E
L
Course on Project Management
S
F
0
1
1
D
E
L
S
F
1
2
Activity
Description
A
Select satisfaction survey tool
B
Print survey tool
C
Select list of patients
D
Sample from list
E
Mail surveys to patients
F
Collect responses
G
Analyze data
Earliest and Latest Start and
Finish Times
S F
S
F
S
F
S
F
S
F
E
0
2
E
2
5
E
5
7
E
7
11
E
11
14
L
0
2
L
2
5
L
5
7
L
7
11
L
11
14
2
A
3
B
E
2
F
4
G
3 End
Start
1
C
S F
Course on Project Management
1
D
S
F
E
0
1
E
1
2
L
3
4
L
4
5
Activity
Description
A
Select satisfaction survey tool
B
Print survey tool
C
Select list of patients
D
Sample from list
E
Mail surveys to patients
F
Collect responses
G
Analyze data
Slack Time
S
F
E
0
2
L
0
2
S
F
E
2
5
L
2
5
2
A
3
B
S
F
E
5
7
L
5
7
E
2
S
F
E
7
11
L
7
11
F
4
S
F
E
11
14
L
11
14
G
3 End
Start
1
C
S
F
E
0
1
L
3
4
1
D
S
F
E
1
2
L
4
5
Slack time = Latest start – Earliest start
Course on Project Management
Critical Path
S
F
E
0
2
L
0
2
S
F
E
2
5
L
2
5
2
A
3
B
S
F
E
5
7
L
5
7
E
2
S
F
E
7
11
L
7
11
F
4
S
F
E
11
14
L
11
14
G
3 End
Start
1
C
S
F
E
0
1
L
3
4
1
D
S
F
E
1
2
L
4
5
Critical path includes activities with no slack.
Course on Project Management
Communicating Project Schedule
Course on Project Management
Time scaled network of activities
Gantt chart
Time an activity graphs and
completion graphs
Communicating Project Schedule
Course on Project Management
Time scaled network of activities
Gantt chart
Time an activity graphs and
completion graphs
Communicating Project Schedule
Course on Project Management
Time scaled network of activities
Gantt chart
Time an activity graphs and
completion graphs
Activity Splitting
Course on Project Management
A
B
E
C
D
Activity
Description
F
G
Precedents
A
Select satisfaction survey tool
B
Print survey tool
C
Obtain list of patients
D
Sample from list
E
Mail surveys to selected patients
F
Collect responses
E
G
Analyze data
F
A
C
D,B
Activity Splitting
Course on Project Management
A
B
E
C
D
Activity
Description
F
G
Precedents
A
Select satisfaction survey tool
B
Print survey tool
C
Obtain list of patients
D
Sample from list
E
Mail surveys to selected patients
F
Collect responses
E
G
Analyze data
F
A
C
D,B
Activity Splitting
Course on Project Management
A
B
E
C
D
Activity
Description
F1
G
F2
Precedents
A
Select satisfaction survey tool
B
Print survey tool
C
Obtain list of patients
D
Sample from list
E
Mail surveys to selected patients
F
Collect responses (F1=early, F2=Late)
E
G
Analyze data
F
A
C
D,B
Software
Course on Project Management
Discovery of Critical Path
Crashing Schedules
Cost time tradeoff
Course on Project Management
Order of crashing
Take Home Lesson
The critical path includes activities
with no slack