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# Decision Analysis

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A project involving the installation of a computer system comprises eight activities.
The following table lists immediate predecessors and activity times (in weeks): {see attachment}

1) Draw a Project Network
2) What are the critical activities
3) What is the expected project completion time.

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#### Solution Preview

For project network, see the attached file.

From the event (S) to (1), Activity: A, time = 3 weeks
From the event (S) to (2), Activities: AC, time = 3+2 = 5 weeks
From the event (S) to (2), Activity: B, ...

#### Solution Summary

A project involving the installation of a computer system comprises eight activities.
The following table lists immediate predecessors and activity times (in weeks).

Activity Immediate Predecessor Time
A - 3
B - 6
C A 2
D B,C 5
E D 4
F E 3
G B,C 9
H F,G 3

1) Draw a Project Network
2) What are the critical activities
3) What is the expected project completion time.

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