The table below show a set of activities of an IS project,its expected completion time (ET) and preceding activities. Activity Preceding Activity Expected Time (ET) A - 7 B A 9 C A,B 5 D C 17 E C 12 F C 7 G D,E,F 10 H D,G 7 Construct a network diagram ,and  calculate its earliest completion time (TE), latest completion time (TL) and slack time (ST). If  the activity E took 16weeks instead of  12weeks to complete ,what impact will it have on the project duration?

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The table below show a set of activities of an IS project,its expected completion time (ET) and preceding activities.

Activity

Preceding

Activity

Expected

Time (ET)

A - 7
B A 9
C A,B 5
D C 17
E C 12
F C 7
G D,E,F 10
H D,G 7
  1. Construct a network diagram ,and  calculate its earliest completion time (TE), latest completion time (TL) and slack time (ST).
  2. If  the activity E took 16weeks instead of  12weeks to complete ,what impact will it have on the project duration?
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