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For a small project, prepare a resource histogram based on EST and LST schedule. Comment on the suitability of distribution on above methods.
Activity A B C D E F G
Preceding activity - - - A B C E
Duration (days) 4 5 3 4 5 3 7
Masons required 3 4 4 3 2 4 8

Smoothen the resources depending upon the peak demands.

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Starting activity: A,B,C

Ending activity: D, E, F

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Critical path: 1 - 3 - 5 - 6

Critical activity: B - E - G

As per LFT, it is found that peak demand of carpentor goes on decreasing which results in smoothening of the carpentors requirements.

As per LFT carpentors are suitable

Activity Duration Masons EST EFT LST LFT
A 4 3 0 4 0 13
B 5 4 0 5 1 5
C 3 4 0 3 10 14
D 4 3 4 8 14 17
E 5 2 5 10 8 10
F 3 4 3 6 13 17
G 7 8 10 17 9 17

As per EFT

Duration×Resources2=4×112+1×122+1×102+2×62+2×22+7×82=1116


As per LFT

=3×112+1×72+1×42+5×22+3×82+1×122+1×162=1040

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