2 2 points For the AON network shown in Figure 1 i What will

2. (2 points) For the AON network shown in Figure 1 (i) What will be the impact on the project if Activity C is delayed? (ii) What will the impact on other activities if Activity C is delayed? SS 5 10 10 15 10 SS 15 END 15

Solution

i) Since critical path is the longest path (time wise), so in the given network, the critical path is A-E-F-G or B-E-F-G (since activity B has start-to-start relation of 5 time units with A). So duration of project = 45 time units

And the path that include activity C is A-C-G which has duration of 35 time units. So activity C can be delayed by 10 time units without affecting the project, given that no other activity has been delayed.

ii) Since there will be no impact on predecessor activities, in this case activity A. And there is only one successor activity which is G, which will be affected by delaying of activity C.

And activity G will only be impacted by delaying of activity C by more than 10 time units. Since G also depends on activity F.