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neny_easy
hw_doc.docx21 - Finish this in class or email to me by Midnight tomorrow night. 20 Pts
This is to be your work, no help from others. If you have trouble email me and I will give you hints and/or an extension of the time. -10
1) Draw the Network performing forward and backward passes giving ES,EF,LS, & LF in the box for each activity
2) Your staff has found a way to reduce the time to do activity H to 4 months. What will the effect be on the critical path and Project Duration if H is reduced to 4 mos?
3) Given crash costs in the last column which activity should be crashed for 1 month 1st?
|
Activity |
Preceding Activity |
Duration months |
Cost to Crash 1st Month |
|
Start |
|
0 |
|
|
D |
Start |
4 |
$1,000 |
|
A |
Start |
6 |
$1,200 |
|
F |
D, A |
7 |
$1,300 |
|
E |
D |
8 |
$1,400 |
|
G |
F, E |
5 |
$1,500 |
|
H |
F |
5 |
$1,600 |
|
B |
G |
7 |
$1,700 |
|
C |
B |
8 |
$1,800 |
|
End |
C, H |
0 |
|
Use this format for the activities boxes
|
|
|
|
ES |
LS |
|
|
Duration |
EF |
LF |
1.
24 32
TASK C
8
25 33
17 24
TASKB
7
18 25
12 17
TASKG
5
13 18
4 12
TASKE
8
4 12
0 4
TASKD
4
0 4
33 33
END
0
33 33
0 0
Start
0 0
6 13
TASKF
7
6 13
28 33
TASKH
5
13 18
0 6
TASKA
6
0 6
The network diagram is wrong -5
|
|
|
|
ES |
LS |
|
|
Duration |
EF |
LF |
2.
Crash D for 2 months Should crash activity on the critical path and lowest cost first -2
|
|
|
|
|
24 32
TASK C
8
25 33
$1800
17 24
TASKB
7
18 25
$1700
12 17
TASKG
5
13 18
$1500
4 12
TASKE
8
4 12
$1400
0 4
TASKD
4
0 4
$1000
33 33
END
0
33 33
0 0
Start
0 0
6 13
TASKF
7
6 13
$1300
28 33
TASKH
5
13 18
$1600
0 6
TASKA
6
0 6
$1200
Crashing D for 2 months = $ 2000
Crash END for 3 months
|
|
|
|
|
24 32
TASK C
8
25 33
$1800
17 24
TASKB
7
18 25
$1700
12 17
TASKG
5
13 18
$1500
4 12
TASKE
8
4 12
$1400
0 4
TASKD
4
0 4
$1000
33 33
END
0
33 33
0
0 0
Start
0 0
6 13
TASKF
7
6 13
$1300
28 33
TASKH
5
13 18
$1600
0 6
TASKA
6
0 6
$1200
Crashing END for 3 months = $0
Crash c for 1 month
|
|
|
|
|
24 32
TASK C
8
25 33
$1800
17 24
TASKB
7
18 25
$1700
12 17
TASKG
5
13 18
$1500
4 12
TASKE
8
4 12
$1400
0 4
TASKD
4
0 4
$1000
33 33
END
0
33 33
0 0
Start
0 0
6 13
TASKF
7
6 13
$1300
28 33
TASKH
5
13 18
$1600
0 6
TASKA
6
0 6
$1200
Crashing C for 1 month = $ 1800
Crash E for 2 months
|
|
|
|
|
24 32
TASK C
8
25 33
$1800
17 24
TASKB
7
18 25
$1700
12 17
TASKG
5
13 18
$1500
4 12
TASKE
8
4 12
$1400
0 4
TASKD
4
0 4
$1000
0,1,4,4 4,5,12,13 13,13,18,18 18,18,25,25 25,25,33,33
33 33
END
0
33 33
0 0
Start
0 0
6 13
TASKF
7
6 13
$1300
28 33
TASKH
5
13 18
$1600
0 6
TASKA
6
0 6
$1200
Crashing E for 2 months = $ 2800
|
|
|
|
|
Crash D for H 1 month
24 32
TASK C
8
25 33
$1800
17 24
TASKB
7
18 25
$1700
12 17
TASKG
5
13 18
$1500
4 12
TASKE
8
4 12
$1400
0 4
TASKD
4
0 4
$1000
33 33
END
0
33 33
0 0
Start
0 0
6 13
TASKF
7
6 13
$1300
28 33
TASKH
5
13 18
$1600
0 6
TASKA
6
0 6
$1200
Crashing D for 1months = $1600
