Question
In: Operations Management
A project consisting of six activities has the following precedence constraints. Activity Time (weeks) Immediate Predecessors...
A project consisting of six activities has the following precedence constraints.
|
Activity |
Time (weeks) |
Immediate Predecessors |
|
A |
3 |
|
|
B |
3 |
A |
|
C |
4 |
A |
|
D |
5 |
A |
|
E |
6 |
C, D |
|
F |
2 |
B, E |
Draw the AOA (activities on the arrows) network diagram for this project
Solutions
Expert Solution
Network diagram refers to the sequence of how the activities will be performed and arrange the activities in sequence and how they are dependent on one another.
The difference between AON and AOA method are: -
In AON diagram, the activities are represented by nodes whereas in AOA diagram, the activities are represented by arrows.
In AON diagram, the arrow represents the interdependencies or precedence relationships whereas in AOA diagram, the events are represented by nodes.
In AON diagram, activity number and description are written inside the oxis that is the node whereas in AOA diagram activity number and description are quoted on the logical diagram
keosha answered 2 years agoRelated Solutions
A project has the following activities, precedence relationships, and time estimates in weeks: Activity Immediate...
A project has the following activities, precedence
relationships, and time estimates in weeks:
Activity
Immediate Predecessor
Activities
Optimistic
Time (to)
Most Likely Time (tm)
Pessimistic
Time (tp)
A
—
15
20
25
B
—
8
10
12
C
A
25
30
40
D
B
15
15
15
E
B
22
25
27
F
E
15
20
22
G
D
20
20
22
a. Compute the expected time and variance for
each activity.
b. Determine the critical path and the expected...
19. Consider a project consisting of five activities. The immediate predecessors and the activity times are...
19. Consider a project consisting of five activities. The
immediate predecessors and the activity times are summarized as
below:
Activity
Immediate
Predecessor
Activity time (in
days)
A
None
3
B
A
2
C
A
1
D
B, C
3
E
D
4
In CPM, what is the completion time of the project?
A
12 days
B
11 days
C
13 days
20. A forecasting method has produced the following over the
past five months. What is the mean absolute deviation...
The following table represents a project with four activities. All times are in weeks. Activity Immediate...
The following table represents a project with four activities.
All times are in weeks.
Activity
Immediate
Predecessor
Optimistic Time
Most Likely Time
Pessimistic Time
A
-
4
8
16
B
-
7
8
9
C
A
6
10
18
D
B
5
13
18
A. According to the data in the table. What is the critical
path?
B. According to the data in the table, what is the minimum
expected completion time for the project?
C. According to the table...
Activities, predecessors and duration for a School Building Project Activity Description Immediate predecessor Duration (days) A...
Activities, predecessors and duration for a School Building
Project
Activity
Description
Immediate predecessor
Duration (days)
A
Clear Site and mobilize labour and equipment
None
5
B
Excavate foundation
A
15
C
Procure materials (sand, cement, chippings etc.)
A
10
D
Pour foundation concrete
B, C
5
E
Mould sandcrete blocks (substructure)
C
5
F
Construct substructure block work
D, E
15
G
Construct superstructure block work
F, H
30
H
Make doors and window frames
I
10
I
Procure and...
A project involves the following activities, their predecessors, and the times (in weeks) associated with each...
A project involves the following activities, their predecessors,
and the times (in weeks) associated with each activity.
Activity
Immediate Predecessor
Optimistic (a)
Most Likely (m)
Pessimistic (b)
A
--
1
2
3
B
--
2
3
4
C
--
3
4
5
D
A
4
5
12
E
B
1
3
5
F
B
3
4
11
G
C
5
6
13
H
D, E
8
9
10
I
F, G
4
5
6
J
H, I
1
1
1...
A project involves the following activities, their predecessors, and the times (in weeks) associated with each...
A project involves the following activities, their predecessors,
and the times (in weeks) associated with each activity.
Activity
Immediate Predecessor
Optimistic (a)
Most Likely (m)
Pessimistic (b)
A
--
1
2
3
B
--
2
3
4
C
--
3
4
5
D
A
4
5
12
E
B
1
3
5
F
B
3
4
11
G
C
5
6
13
H
D, E
8
9
10
I
F, G
4
5
6
J
H, I
1
1
1...
Problem 1 A project involves the following activities, their predecessors, and the times (in weeks) associated...
Problem 1
A project involves the following activities, their predecessors,
and the times (in weeks) associated with each activity.
Activity
Immediate Predecessor
Optimistic (a)
Most Likely (m)
Pessimistic (b)
A
--
1
2
3
B
--
2
3
4
C
--
3
4
5
D
A
4
5
12
E
B
1
3
5
F
B
3
4
11
G
C
5
6
13
H
D, E
8
9
10
I
F, G
4
5
6
J
H, I
1...
Consider a project consisting of four activities A, B, C, and D. The following are constraints...
Consider a project consisting of four activities A, B, C, and D.
The following are constraints within which the project has to be
conducted
• A and B, the first activities of the project, can be started
simultaneously.
• C can be started only after A is completed.
• D can be started only after B is completed
Suppose the activity times for the activities are A = 4 weeks, B
= 3 weeks, C = 2 weeks, D =...
The table below presents durations, direct costs and immediate predecessors for each activity of a project...
The table below presents durations, direct costs and immediate
predecessors for each activity of a project executed by a
contracting company, under both normal and crash conditions. The
weekly indirect cost is L.E. 40.
Activity Code
Immediate Predecessors
Normal Duration (week)
Normal Total Direct Cost (L.E)
Crash Duration (Week)
Crash Total Direct Cost (L.E)
Total Allowable crash Time (Week)
Cost Slope per Week
(L.E)
A
None
8
325
5
400
3
25
B
None
12
1200
11
1320
1
120...
Information on a project’s activities is shown in the following table: Activity Immediate Predecessor Activity Time...
Information on a project’s activities is shown in the following
table:
Activity
Immediate
Predecessor
Activity Time
(wks)
Total Budgeted
Cost
A
-
4
24,000
B
-
3
27,000
C
B
2
14,000
D
A
8
32,000
E
D
3
24,000
F
C, E
4
60,000
G
D
6
30,000
H
F
6
30,000
I
G
4
20,000
J
G, H
3
18,000
K
I
2
10,000
L
J
4
16,000
Create a Gantt chart based on earliest start times. (20...
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