Mdluli Machinery specializes in developing weed harvesting
equipment that is used to clear small lakes of weeds. George
Mdluli, president of Mdluli Machinery, is convinced that harvesting
weeds is far better than using chemicals to kill weeds. Chemicals
cause pollution, and the weeds seem to grow faster after chemicals
have been used. George is contemplating the construction of a
machine that would harvest weeds on narrow rivers and waterways.
The activities that are necessary to build one of these
experimental weed-harvesting machines are listed in the following
table
|
ACTIVITY |
IMMEDIATE PREDESESSOR |
|
A |
– |
|
B |
– |
|
C |
A |
|
D |
A |
|
E |
B |
|
F |
B |
|
G |
C, E |
|
H |
D, F |
After consulting with Butch Radner, George Mdluli was able to
determine the activity times for constructing the weed-harvesting
machine to be used on narrow rivers. George would like to determine
ES, EF, LS, LF, and slack for each activity. The total project
completion time and the critical path should also be determined.
The activity times are shown in the following
table:
|
ACTIVITY |
TIME (WEEKS) |
|
A |
6 |
|
B |
5 |
|
C |
3 |
|
D |
2 |
|
E |
4 |
|
F |
6 |
|
G |
10 |
|
H |
7 |
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