Scheduling Exercise $6$

Critical Path Method $($CPM$)$

Activity on the Arrow $($AOA$)$

Forward Pass, Backward Pass, Total Float

For each project, verify if the diagram is correct; add or remove requisite links $($arrows$,$

dummies$).$ Do a forward pass to calculate the early start and the early finish of each activity.

Do a backward pass to calculate the late start and the late finish of each activity. Determine the

total float of each activity. Highlight the critical path on the CPM diagram and answer the

following questions $(1$ point each$)$:

Part $1(4$ Points$)$

$1.$ How long does the project take? $\_\_\_\_\_\_$ days

$2.$ What is the early start of activity N$?$ day $\_\_\_\_\_\_$

$3.$ What is the late finish of activity O$?$ day $\_\_\_\_\_\_$

$4.$ Which activity lists a redundant predecessor $\_\_\_\_\_\_$

Part $2(6$ Points$)$

$5.$ How long does the project take? $\_\_\_\_\_\_$ days

$6.$ What is the late start of activity R$?$ day $\_\_\_\_\_\_$

$7.$ What is the early finish of activity L$?$ day $\_\_\_\_\_\_$

$8.$ If activity D is delayed by $3$ days,

what is the length of the overall project? $\_\_\_\_\_\_$ days

$9.$ If activity T is delayed by $10$ days,

what is the length of the overall project? $\_\_\_\_\_\_$ days

$10.$ What activities are on the critical path? $\_\_\_\_\_\_\_\_\_\_\_$

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