*activity*

a
b
c
d
e
f
g
h

*description*

order and deliver component a
order and deliver component b
record sales/purchases on spreadsheet
receive and check all components
manufacture stage 1
sub-assembly 1
manufacture stage 2
dispatch to customer

*preceded by*

-
-
-
a, b
d
d
e
f, g

*duration*

8
5
1
2
6
8
3
1

a. draw the network for the manufacturing process above and for each activity calculate:
(i) total float and (ii) free float
b. what is the minimum duration for the project?
c. identify the critical path.