Assignment for week 5

Given the following information, draw the project network. Compute the early, late and slack times for the project network. which activities are on the critical path have only the start or finish of the activity on the critical path?
ID duration finish to start finish to start additional lag lag
predecessor lag Relationship
A 2 none 0 none 0
B 4 A 0 none 0
C 6 A 0 finish-finish C to F 7
D 8 A 0 none 0
E 18 B 0 finish-finish E & G 9
C 10
F 2 D 0 none
G 5 F 0 Start-start G to H 10
H 5 None 0 none
I 14 E 0 Finish-finish I to J 5
J 15 G,H 0 none 0

What kind of HELP do you need? You need to be specific when asking questions here.

If all you do is post your entire assignment, with no evidence of thinking on your part, nothing will happen since no one here will do your work for you. But if you are specific about what you don't understand about the assignment or exactly what help you need, someone might be able to assist you.

To draw the project network, you need to identify the activities and their dependencies. The information given provides the activity ID, duration, finish-to-start predecessor, additional lag, and lag relationship.

Here is the project network diagram:

```
A (2)
/ \
B (4) C (6)
| / \
E (18) I (14)
/ \ /
D (8) J (15)
|
F (2)
|
G (5)
|
H (5)
```

To compute the early, late, and slack times for the project network, you can use the Critical Path Method (CPM). The CPM calculates the earliest start and finish times for each activity, as well as the latest start and finish times. The slack time is the difference between the latest start time and the earliest start time.

Here are the computed early, late, and slack times for each activity:

```
Activity Early Start Early Finish Late Start Late Finish Slack Time
----------------------------------------------------------------------------
A 0 2 0 2 0
B 2 6 2 6 0
C 2 8 3 9 1
D 2 10 10 18 8
E 10 28 10 28 0
F 10 12 23 25 11
G 12 17 28 33 11
H 17 22 33 38 16
I 28 42 28 42 0
J 33 48 33 48 0
```

The critical path is the path with zero slack time. In this case, the critical path activities are A, B, E, G, H, and J. These activities have only the start on the critical path.

Activities C, D, F, and I have some slack time and do not lie on the critical path.