Question

Management Information Systems

Assume you have a project with 11 activities labeled A - K (below). (5 points)

Activity	Preceding Activities	Duration (Days)	Early Finish (Days)	Late Finish (Days)	Free Slack (Days)
A	--	4
B	A	2
C	B	6
D	B	21
E	B	12
F	C, D	2
G	D, E	15
H	F, G	8
I	G	16
J	H, I	4
K	I, J	1

a. Using the table above, enter the early finish times, late finish times, and slack for each activity; use days, do not use actual dates.

Answer 1

We will first draw the network diagram of all the activities. We will use the following nomenclature in the network diagram.

Late start	Activity name	Late finish
Early start	Activity time	Early finish

From the network diagram, we can see that for all the activities, the early finish, the late finish and the slack are as follows. The slacks are calculated as Late start - Early start or Late finish - Early finish. The slacks have been written in single inverted commas in the network diagram.

Network diagram

Activity	Preceding Activities	Duration (Days)	Early Finish (Days)	Late Finish (Days)	Free Slack (Days)
A	--	4	4	4	0
B	A	2	6	6	0
C	B	6	12	48	36
D	B	21	27	27	0
E	B	12	18	27	9
F	C, D	2	29	50	21
G	D, E	15	42	42	0
H	F, G	8	50	58	8
I	G	16	58	58	0
J	H, I	4	62	62	0
K	I, J	1	63	63	0