netwok dig

Submitted by sv on Mon, 12/13/2010 - 22:35

Please refer to the diagram given below (all units are in days):


i have taken this dig from PM study test. just wondering how to find ES,EF,LS,LF dates for such a network?
 

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raj9

Tue, 12/14/2010 - 16:11

First step - You need to find out critical path-


it is  16 days and start-t1-t2-t3-t5-t7-end.














































































































































Critical Path      
         
Acitivity  ES EF LS LF
start-T1 1 1 1 1
T1-t2 2 5 2 5
t2-t3 6 6 6 6
t3-t5 7 10 7 10
t5-t7 11 11 11 11
t7-end 12 16 12 16
         
         
Acitivity  ES EF LS LF
start-t6 1 7 2 8
t6-t7 8 10 9 11
t7-end 12 16 12 16
         
t2-t4 6 8 6 12
t4-end 15 16 15 16
         
start-t3 1 5 2 6
t3-t5 7 10 7 10
t5-t7 11 11 11 11
t7-end 12 16 12 16