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Nov 24, 2024
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CPM is the Critical Path Method. This is a project management technique that is used to plan and
organize complex projects. It targets determining the critical path by a project's tasks to define the shortest possible time in which the project can be completed.
12.13 Construct the project activity network using AON methodology. Answer
The AON diagram for the given data is as follows:-
12.14 Identify the critical path and other paths through the network. Answer
Possible paths:-
Total
A
B
E
H
3
5
5
5
18
A
B
D
F
H
3
5
3
4
5
20
A
C
D
F
H
3
7
3
4
5
22
A
C
G
H
3
7
2
5
17
Critical path= A−C−D−F−H
Expected duration= 22weeks
12.15 Create a time-phased resource-loading table for this project, identifying the activity early start and late finish points. Answer
D(duration)=given in the question as normal time
ES (Early start)= The first activity must have the ES as 0. In going forward if any activity has 2 or more 2 preceding activities then a higher value will be taken from them.
EF(Early finish)=ES+D
LS(Late Start)=LF-D
LF(Late finish)= The last activity from where the network always starts with LF as same the value of EF. If any activity has 2 or more than 2 following activities then we have to take the lower value from them.
Slack (float)=LS-ES or LF-EF
Outcome Activity
ES
EF
LS
LF
Total
Slack
(float)
A
0
3
0
3
0
B
3
8
5
10
2
C
3
10
3
10
0
D
10
13
10
13
0
E
8
13
12
17
4
F
13
17
13
17
0
G
10
12
15
17
5
H
17
22
17
22
0
12.16 Assume that there is a maximum of eight resource hours per week available for the project.
Can you identify any weeks that have resource over commitments? The allocation of resources is as follows:-
Weeks 3 to 13 and 17th weeks are over commitments.
12.17 Resource-level the loading table. Identify the activity that can be rescheduled and reconfigure the table to show this reallocation. Answer
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To resolve the resource overcommitments, we can reschedule Activity C, which has a total float of 1 week, to start in week
11
instead of week 10.
This will result in the following resource-
loading table:
Now, the resource hours required per week are as follows:
Resource-leveling the loading table, identifying the activity that can be rescheduled and reconfigure the table to show this reallocation:
Resource leveling is the process of adjusting the project schedule to resolve resource over commitments. In this part, the task is to identify the activity that can be rescheduled to resolve the resource over commitments and then modify the resource-loading table to show the revised schedule.
By rescheduling an activity with some total float, we can shift its start date to a later time to reduce the resource demand during a resource-constrained period. This helps to balance the resource demand and supply and ensure that the project is completed on schedule.
Reviewing "Project Managers in Practice" (Box 12.1):
Lessons learned from experienced project managers can be invaluable. Look for insights related to communication, risk management, stakeholder engagement, and adaptability.
Pay attention to strategies for handling unexpected challenges or changes in project scope.
Consider any guidance on team motivation, collaboration, and conflict resolution.
Opinion on Ms Project Resource Leveling Video:
Resource leveling is most appropriate when we have resource constraints and need to optimize resource usage throughout the project.
This tool-based approach is particularly useful in projects with dynamic resource availability, where task dependencies and resource assignments may need frequent adjustments.
It's beneficial when we want to ensure a more balanced workload for our team members and prevent resource over allocation.
In general, resource leveling tools, like Microsoft Project, are helpful when:
Resource Constraints: You have limited resources available, and you need to optimize their usage efficiently.
Task Dependencies: Your project tasks are dependent on each other, and resource availability affects task scheduling.
Preventing Overallocation: You want to avoid situations where a resource is assigned to more work than can be completed in a given time.
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