Lilian is the project manager of J Construction Company. The Company is bidding on a contract to install telephone lines in a small town. It has identified the following activities along with their predecessor restrictions, expected times and worker requirements.

Activity Predecessors Duration Weeks Crew Size
Workers
A – 4 4
B – 7 2
C A 3 2
D A 3 4
E B 2 6
F B 2 3
G D, E 2 3
H F, G 3 4
Lilian has agreed with the client that the project should be
completed in the shortest duration.
Required:
(i) Draw a network for the project. (6 marks)
(ii) Determine the critical path and the shortest project duration. (2
marks)
(iii) Lilian will assign a fixed number of workers to the project for
its entire duration and so she would like to ensure that the minimum
number of workers is assigned and that the project will be completed in
14 weeks.
Draw a schedule showing how the project will be completed in 14
weeks.
(6 marks)
(iv) Comment on the schedule you have drawn in (iii) above. (2
marks)