Critical Path Method Kegiatan Predecesor Waktu A 8 B 4 C A 10 D A 2 E B 5 F DE 3 Critical Path Method 1 0 0 2 8 8 3 4 10 4 10 15 5 18 18 A8 C10 D2 B4 ID: 658045
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Slide1
Critical Path Method
Eko HartantoSlide2
Critical Path Method
Kegiatan
Predecesor
Waktu
A
-
8
B
-
4
C
A
10
D
A
2
E
B
5
F
D,E
3Slide3
Critical Path Method
1
0
0
2
8
8
3
4
10
4
10
15
5
18
18
A/8
C/10
D/2
B/4
E/5
F/3
Total Cost : 100+150+50+100+100+80 = 580Slide4
Critical Path Method
Aktivitas
Normal
Dipercepat
Waktu
Ongkos
Waktu
Ongkos
A
8
100
6
200
B
4
150
2
350
C
10
100
5
400
D
2
50
1
90
E
5
100
1
200
F
3
80
1
100
Data waktu dan ongkos masing-masing kegiatan pada gambar diatas adalah sebagai berikut :Slide5
Critical Path Method
Analisis dari persoalan diatas akan tergantung pada kemiringan garis ongkos dan waktu untuk berbagai aktivitas. Kemiringan garis dapat dihitung :
Cc - Cn
Kemiringan =
Dc – Dn
Dimana
:
- Cc = Cost crash
- Cn = Cost normal
- Dn = Duration normal- Dc = Duration crash
Aktivitas
Kemiringan
A
50
B
100
C
60
D
40
E
25
F
10Slide6
Critical Path Method
1
0
0
2
7
7
3
4
9
4
9
14
5
17
17
A/7
C/10
D/2
B/4
E/5
F/3
Total Cost : 580+50 = 630Slide7
Critical Path Method
1
0
0
2
6
6
3
4
8
4
9
13
5
16
16
A/6
C/10
D/2
B/4
E/5
F/3
Total Cost : 630+50 = 680Slide8
Critical Path Method
1
0
0
2
6
6
3
4
7
4
9
12
5
15
15
A/6
C/9
D/2
B/4
E/5
F/3
Total Cost : 680+60 = 740Slide9
Critical Path Method
1
0
0
2
6
6
3
4
6
4
9
11
5
14
14
A/6
C/8
D/2
B/4
E/5
F/3
Total Cost : 740+60 = 800Slide10
Critical Path Method
1
0
0
2
6
6
3
4
5
4
9
10
5
13
13
A/6
C/7
D/2
B/4
E/5
F/3
Total Cost : 800+60 = 860Slide11
Critical Path Method
1
0
0
2
6
6
3
4
4
4
9
9
5
12
12
A/6
C/6
D/2
B/4
E/5
F/3
Total Cost : 860+60 = 920Slide12
Critical Path Method
1
0
0
2
6
6
3
4
4
4
9
9
5
11
11
A/6
C/5
D/2
B/4
E/5
F/2
Total Cost : 920+(60+10) = 990Slide13
Critical Path Method
Aktivitas
Predesesor
Normal
Percepatan
Time
Cost
Time
Cost
A
-
4
210
3
280
B
-
8
400
6
560
C
A
6
500
4
600
D
A
9
540
7
600
E
D
5
500
2
1100
F
B,C,E
5
150
4
240
G
F
3
150
2
400
H
D
9
600
6
750
Dari tabel aktivitas diatas, hitung :
1). Waktu penyelesaian normal dan ongkosnya !
2). Waktu penyelesaian tercepat dan ongkosnya !