Consider a project which has been modeled as follows: Required: a) Determine the project?s expected completion time and its critical path. b) Can activities E and G be...

Consider a project which has been modeled as follows:


Required:
a) Determine the project‟s expected completion time and its critical path.
b) Can activities E and G be performed at the same time without delaying the completion of the project?
c) Can one person perform activities A, G and I without delaying the project?
d) By how much time can activities G and L be delayed without delaying the entire project?
e) By how much time would the project be delayed if activity G were delayed by 3 hours and activity L by 4 hours? Explain.

a) To get the project completion time and critical path the network is drawn as follows


b) Activities G and E are not part of critical path. Activity G?s earliest start is 11 hours of which activity E can start too since its latest start is 16 hours (LET2 - dE = 23 - 7 = 16). So the activities G and E can be performed at the same time without delaying the project.

c) One person can perform activities A, G and I without delaying the overall completion of the project. This is because activities G and I are not part of critical path. G can start after activity A since its earliest start time is 11 hours which is well over the latest end time for activity A. Activity I can start after G and still be completed without delaying project time.

d) Activities G and L are not in the critical path. Activity G can be delayed for 7 hours and activity L can be delayed for 4 hours without delaying the project time.

e) Delaying activity G by 3 hours does not make the activity critical. Furthermore, delaying the activity L by 4 hours just makes this activity critical. Therefore the overall effect is that there is no delay in the project

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Wilfykil answered the question on February 20, 2019 at 07:16

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