You have been asked to construct a project network for a warehouse, which aims to automate its order picking system, for the activities below:

Activity	Description	Preceding Activity	Days
A	Define Requirements	None	10
B	Assign Team	A	5
C	Design Hardware	A	25
D	Code Software	B	20
E	Build & Test Hardware	C	50
F	Develop Patent Request	C	15
G	Test Software	D	35
H	Integrate Systems	E, F, G	15

1. 4.0 points to construct project network diagram.
2. 1.5 points to determine the critical path and show your working.
3. 1.0 points: You are a Project Manager. In your weekly progress meeting, you found out that activity E will have a delay of 3 days. Activity F may also have 13 days delay. As a project manager, which of these activities would you try to work on so that you can overcome potential problem and do not have any delay?
4. 1.0 points: For your choices in the above question, explain your answers (use examples where appropriate).