Question

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4. Compute the early start, early finish, late start, and late finish dates and floats (total float and free float) for the activities of the project shown below. Identify the critical activities on the AON diagram. Draw an early bar chart for the project and show critical activities. TF= TF = TF= FS= -2 TF FFT- FFT= FFTE TF= 10 FS=3 FFT= TF= TF FFT= TF= FFT= FFT= TF = FFT= FFT= Activity FFTE FF = 4 Duration between finish of X and start of Y (FS = 3) TF= FFT= Activity duration YO (Note: durations and relationships are in days) FFT=

Answer 1

Given below are the pics of solved AON diagram and early bar chart diagram.

Project duration is 48 days

critical path is A-B-D-G-I-J-L

critical path is shown with double line.

Points to be noticed:

Total float=LF of current activity-EF of current activity (or) LS of current activity-ES of current activity.

Free float= ES of next activity-EF of current activity.

ES is maximum of merging relation

LS is minimum of merging relation

PARA AON DIAGRAM min of 15, 14 T.F=0 Duration TiF=0 Tof=4 6 i B D 19 FS:-217 T.F=1 14 FFT=0 FFT = 3 FFT=D It FS=3 TF=1 TF=1 Tif=0 SS=5 T:F=2 8 C 12 FFT=0 T.F=0 FF TOO 13 Loo 21 Ily 104 1141 FFT=1 FFTEI ! FFT =D FFT=-31 IFF=4 Tifah TF=0 FFTED ( B max of 12,15 2148 max. of 21,22 3 481 FFT=0 FETOD

WWW.SI EARLY BAR CHART + rer alv . A. Les 82 140 114 b 170 F 22 125 h 5 A I H fe ACTIVITY R . 28 DI34 340 3 ss R 40 4s * 451148 D Den ttttttttt4HHHHHHH- 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 DAYS