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The Project Completion Essay Discussion Paper  Draw a network diagram for the project. b. What is the project completion date? In other words, how many days would it take to complete this project on normal time? c. What is the total cost required to complete this project on normal time? d. If the project had to be completed 2 days earlier, would it help to reduce Activity 5 by two days? e. If Activity 4 is delay by one day, would it delay the project completion date? f. If Activity 2 is delay by five days, would it delay the project completion date? Expert Answer ORDER YOUR PAPER NOW This solution was written by a subject matter expert. It's designed to help students like you learn core concepts. Step-by-step 1st step All steps Answer only Step 1/3 Ans a) Network Diagram for the project: The Project Completion Essay Discussion Paper 12354StartEnd EXPLANATION Added start node and end node for clarity. Activity 1, 2 and 3 have no predecessors. Activity 4 and 5 have predecessors. Step 2/3 Ans b) Project Completion days on normal time. Project completion time = 12 days EXPLANATION Activity is ending on 12th day. The activities with zero slack form the critical path. S-3-5-E is the critical path. ES = Earliest Start EF = Earlier Finish = ES + Duration LS = Latest Start = LF - Duration LF = Latest Finish EF for activity 4 = ES for activity 4 and duration of activity 4=6+5=11 Activity Normal duration ES EF LS LF Slack S 0 0 0 0 0 0 1 6 0 6 1 7 1 2 8 0 8 4 12 4 3 4 0 4 0 4 0 4 5 6 11 7 12 1 5 8 4 12 4 12 0 E 0 12 12 12 12 0 ------------------------------------------------------------------------------------------ Ans c) Total cost required to complete the project on normal time: Cost given is per day cost. Total cost for nomal time=900×6+300×8+500×4+900×5+1,000×8=22,300 Total cost = $ 22300 ---------------------------------------------------------------------------------------------- Step 3/3 Ans d) To reduce the project cost, we should first reduce activity duration from critical path. EXPLANATION Critical path is S-3-5-E In this path, we should reduce the activity time for the one with lowest crash cost. So we should reduce 2 days from activity 3 as it has lower cost (600$ per day) compared to (1600$ per day) for activity 5. Crash cost for activity 3=2×600=1,200 Crash cost for activity 5=2×1,600=3,200 The project can be completed by reducing activity 5 by 2 days but it will cost higher. ------------------------------------------------------------------------------------------- Ans e) From the table in step 1, we see activity 4 has slack of 1 day. So if activity 4 is delayed by 1 day, there will be no delay in project completion date. ORDER NOW Ans f) From the table in step 1, we see activity 2 has slack of 4 days. If activity 2 is delayed by 5 days, the project will delay by 1 day. ------------------------------------------------------------------------------------------------- Final answer a) Project network drawn. b) project completion date = 12 days c) total cost = $22,300 d) Better to reduce activity 3 by 2 days e) No delay f) delay by 1 day The Project Completion Essay Discussion Paper
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Expert Answer

The Project Completion Essay Discussion Paper
 Draw a network diagram for the project. b. What is the project completion date? In other words, how many days would it take to complete this project on normal time? c. What is the total cost required to complete this project on normal time? d. If the project had to be completed 2 days earlier, would it help to reduce Activity 5 by two days? e. If Activity 4 is delay by one day, would it delay the project completion date? f. If Activity 2 is delay by five days, would it delay the project completion date?

Expert Answer

This solution was written by a subject matter expert. It's designed to help students like you learn core concepts.

Step-by-step

Step 1/3
Ans a) Network Diagram for the project: The Project Completion Essay Discussion Paper
12354StartEnd
EXPLANATION
Added start node and end node for clarity. Activity 1, 2 and 3 have no predecessors. Activity 4 and 5 have predecessors.
Step 2/3
Ans b) Project Completion days on normal time.
Project completion time = 12 days
EXPLANATION
Activity is ending on 12th day. The activities with zero slack form the critical path.
S-3-5-E is the critical path.
ES = Earliest Start
EF = Earlier Finish = ES + Duration
LS = Latest Start = LF - Duration
LF = Latest Finish
EF for activity 4 = ES for activity 4 and duration of activity 4=6+5=11
Activity
Normal duration
ES
EF
LS
LF
Slack
S
0
0
0
0
0
0
1
6
0
6
1
7
1
2
8
0
8
4
12
4
3
4
0
4
0
4
0
4
5
6
11
7
12
1
5
8
4
12
4
12
0
E
0
12
12
12
12
0
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Ans c) Total cost required to complete the project on normal time:
Cost given is per day cost.
Total cost for nomal time=900×6+300×8+500×4+900×5+1,000×8=22,300
Total cost = $ 22300
----------------------------------------------------------------------------------------------
Step 3/3
Ans d) To reduce the project cost, we should first reduce activity duration from critical path.
EXPLANATION
Critical path is S-3-5-E
In this path, we should reduce the activity time for the one with lowest crash cost. So we should reduce 2 days from activity 3 as it has lower cost (600$ per day) compared to (1600$ per day) for activity 5.
Crash cost for activity 3=2×600=1,200
Crash cost for activity 5=2×1,600=3,200
The project can be completed by reducing activity 5 by 2 days but it will cost higher.
-------------------------------------------------------------------------------------------
Ans e)
From the table in step 1, we see activity 4 has slack of 1 day. So if activity 4 is delayed by 1 day, there will be no delay in project completion date.

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Ans f)
From the table in step 1, we see activity 2 has slack of 4 days. If activity 2 is delayed by 5 days, the project will delay by 1 day.
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Final answer
a) Project network drawn.
b) project completion date = 12 days
c) total cost = $22,300
d) Better to reduce activity 3 by 2 days
e) No delay
f) delay by 1 day The Project Completion Essay Discussion Paper

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