OPERATIONS MANAGEMENT AND OPERATIONS RESEARCH

QUESTION 1

Draw the activity-on-node (AON) project network associated with the following activities for Ewoenam's consulting company project. How long should it take Ewoenam and her team to complete this project? What are the critical activities? Derive a table showing the ES, EF, LS, LF, Slack Time and Critical Path.

Activity	Immediate Predecessor(s)	Time (days)
A	-	3
B	A	4
C	A	6
D	B	6
E	B	4
F	C	4
G	D	6
H	E, F	8

QUESTION 2

Given the activities whose sequence is described by the following table, draw the appropriate activity-on-node (AON) network diagram.

Which activities are on the critical path?

What is the length of the critical path?

Activity	Immediate Predecessor(s)	Time (days)
A	-	5
B	A	2
C	A	4
D	B	5
E	B	5
F	C	5
G	E,F	2
H	D	3
I	G, H	5