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Title:

Time - Cost Tradeoff

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Title: Author: Najafi Last modified by: DR.MOKHTARI Created Date: 11/5/2003 12:40:40 AM Document presentation format – PowerPoint PPT presentation

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Title: Time - Cost Tradeoff


1
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2
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Time - Cost Tradeoff
?????? ?????? ????-?????
?????? ?????? ????-????? ??????? ?? ??????????
???????? ?????? ?? ??? ??? ?? ????? ???
1- ???? ??? ???? ????? ?? ?????? ???? ????
2- ???? ????? ????????? ?????
3
?????? ????-?????
Time - Cost Tradeoff
???1- ???? ??? ???? ????? ?? ?????? ???? ????
  • ???? ??? ???????? ???? ???? ?? ?????? ??? ????
    ??? ????? ????? ????? ????? ???? ???? ????.
  • ??????? ???? ??? ???? ???? ???? ?? ???? ??????
    ????????? ??? ?? ???? ???? ???????.
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    ???????? ?? ???? ????.
  • ????? ???? ??? ??? ?? ??? ???? ???? ????????
    ???? ???? ??????
  • ?????? ???? ?????? ???? ??? ???? ???????? ??
    ?????.

4
?????? ????-?????
Time - Cost Tradeoff
?????? ???? ??? ???? ??????
?????? ?????
?????? ????? ????
????? ??? ????
?????? ????????
5
?????? ????-?????
Time - Cost Tradeoff
????? ???? ??? ???? ?????? ?? ????? ??? ??
????? ??????
????? ????? (Crash cost)
????? ????? (Normal cost)
??? ???? ????? (Normal Duration)
??? ???? ??????
??? ???? ????? (Crash Duration)
6
?????? ????-?????
Time - Cost Tradeoff
?????? ?? ??? ????? ??
????? ??? ????? ?? ???????? ????? ????? ????????
???? ????.
????? ?????? ????? ???? ??? ???? ?????????
??????? ????? ?????? ????? ?? ?????? ????? ? ???
???? ????? ?? ?? ???? ???? ????????.
7
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Time - Cost Tradeoff
????- ??? ????? ??
0 7 7
7 9 16
A
B
2 2 9
9 2 18
0 0 0
18 0 18
Start
Finish
0 0 0
18 0 18
0 10 10
10 8 18
C
D
0 0 10
10 0 18
??? ???? ???? ???? ????? ????? 15 ???? ???????.
8
?????? ????-?????
Time - Cost Tradeoff
????- ??? ????? ??
B N9, 80,000 C6, 110,000
A N7, 50,000 C5, 62,000
Start
Finish
D N8, 30,000 C6, 42,000
C N10, 40,000 C9, 45,000
Activity A, 6,000/wk Activity B,
10,000/wk Activity C, 5,000/wk Activity D,
6,000/wk
9
?????? ????-?????
Time - Cost Tradeoff
????- ??? ????? ??
0 7 7
7 9 16
A
B
2 2 9
9 2 18
0 0 0
18 0 18
Start
Finish
0 0 0
18 0 18
0 10 10
10 8 18
C
D
Activity A, 6,000/wk Activity B,
10,000/wk Activity C, 5,000/wk Activity D,
6,000/wk
0 0 10
10 0 18
10
?????? ????-?????
Time - Cost Tradeoff
????- ??? ????? ??
???1- ???? ??? ???? ?????? C ?? ????? ?? ????
0 7 7
7 9 16
A
B
1 1 8
8 1 17
0 0 0
17 0 17
Start
Finish
0 0 0
17 0 17
0 9 9
9 8 17
C
D
Activity A, 6,000/wk Activity B,
10,000/wk Activity C, 5,000/wk Activity D,
6,000/wk
0 0 9
9 0 17
11
?????? ????-?????
Time - Cost Tradeoff
????- ??? ????? ??
??? 2- ???? ??? ???? ?????? ?D ?? ????? ?? ????
0 7 7
7 9 16
A
B
0 0 7
7 0 16
0 0 0
16 0 16
Start
Finish
0 0 0
16 0 16
0 9 9
9 7 16
C
D
Activity A, 6,000/wk Activity B,
10,000/wk Activity C, 5,000/wk Activity D,
6,000/wk
0 0 9
9 0 16
12
?????? ????-?????
Time - Cost Tradeoff
????- ??? ????? ??
???3- ???? ??? ???? ????????? ?D? A ?? ????? ??
????
0 6 6
6 9 15
A
B
0 0 6
6 0 15
0 0 0
15 0 15
Start
Finish
0 0 0
15 0 15
0 9 9
9 6 15
C
D
0 0 9
9 0 15
????? ?????? ????????? ????? ???????? ??? ????
???? ????? ?????23000 ???? ?????.
13
?????? ????-?????
Time - Cost Tradeoff
???2- ???? ????????? ?????
  • ??? ????? ???? ???????? ?????? ?????? ?? ??????
    ????????? ????? ???? ???????
  • ???? ???? ???? ???? ???. ???? ????????? ?????
    ????? ?? ?? ??? ???
  • ????????? ?????? ( ACTIVITY BASED) ? ?????????
    ????????? (PROJECT BASED).
  • ????????? ?????? ?? ?????? ???????? ? ???? ???
    ???? ?????? ?????? ???????.
  • ????????? ????????? ????? ?? ??? ???? ?????
    ???????? ? ?? ???? ??? ???? ?????? ????? ????????.

14
?????? ????-?????
Time - Cost Tradeoff
Minimum cost optimal project time
Total cost
Cost
Indirect cost
Direct cost
Time
Crashing
Project Duration
15
?????? ????-?????
Time - Cost Tradeoff
?????? ?? ??? ????? ??
????? ??????? ???????? ? ????? ????? ?????????
????? (??? ????????? ?????? ? ?????????)
???? ??? ???? ????? ?? ??????? ?? ???? ?????????
????? ????? ???.
16
?????? ????-?????
Time - Cost Tradeoff
????- ??? ????? ??
???1- ????? ??????? ???????? ?? ??????? ?????
0 7 7
7 9 16
A
B
2 2 9
9 2 18
0 0 0
18 0 18
Start
Finish
0 0 0
18 0 18
0 10 10
10 8 18
C
D
0 0 10
10 0 18
????? ????????? ????0 ?? ?? ???? ????? 10000 ????
???.
17
?????? ????-?????
Time - Cost Tradeoff
????- ??? ????? ??
B N9, 80,000 C6, 110,000
A N7, 50,000 C5, 62,000
Start
Finish
D N8, 30,000 C6, 42,000
C N10, 40,000 C9, 45,000
????? ????????? ????0 187000126000
??? ????? ??? ????0 326000
????? ?????? ????0 50000800004000030000200000
18
?????? ????-?????
Time - Cost Tradeoff
????- ??? ????? ??
???2- ???? ??? ????? ?? 17 ???? (???? ???? ??????
C)
0 7 7
Activity A, 6,000/wk Activity B,
10,000/wk Activity C, 5,000/wk Activity D,
6,000/wk
7 9 16
A
B
1 1 8
8 1 17
0 0 0
17 0 17
Start
Finish
0 0 0
17 0 17
0 9 9
9 8 17
C
D
0 0 9
9 0 17
????? ????????? ????0 177000119000
??? ????? ??? ????0 324000
????? ?????? ????05000200000205000
19
?????? ????-?????
Time - Cost Tradeoff
????- ??? ????? ??
???3- ???? ??? ???? ????? ?? 16 ???? (???? ??????
?D )
0 7 7
Activity A, 6,000/wk Activity B,
10,000/wk Activity C, 5,000/wk Activity D,
6,000/wk
7 9 16
A
B
0 0 7
7 0 16
0 0 0
16 0 16
Start
Finish
0 0 0
16 0 16
0 9 9
9 7 16
C
D
0 0 9
9 0 16
????? ????????? ????0 167000112000
??? ????? ??? ????0 323000
????? ?????? ????06000205000211000
20
?????? ????-?????
Time - Cost Tradeoff
????- ??? ????? ??
???3- ???? ??? ???? ????? ?? 15 ???? (????
????????? ?D? A )
0 6 6
Activity A, 6,000/wk Activity B,
10,000/wk Activity C, 5,000/wk Activity D,
6,000/wk
6 9 15
A
B
0 0 6
6 0 15
0 0 0
15 0 15
Start
Finish
0 0 0
15 0 15
0 9 9
9 6 15
C
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0 0 9
9 0 15
????? ????????? ????0 157000105000
??? ????? ??? ????0 328000
????? ?????? ????012000211000223000
21
?????? ????-?????
Time - Cost Tradeoff
Minimum cost optimal project time
Cost
Project Duration
22
????? ???? ?????
Project Cash Flow
????? ???? ????? ????????? ????? ????? ???? ????
??? ????? ???????? ???????.
23
?????? ?????????
Responsibility Matrix
???? ????? ?????? ?????????
????? ?????? ?????? ?????
????? ??????? ? ??? ???? ?? ????? ?? ?? ??
????????
????? ????? ?????? ?????????
24
?????? ?????????
Responsibility Matrix
??????
X ?????? ?? ???? ??????.
D ?? ?????? ????? ??????? ?? ???????????? ?????
???.
d ???????????? ?????? ????.
P ????? ?? ?????? ? ?????? ?? ????? ??????.
I???? ???? ???.
25
?????? ?????????
Responsibility Matrix
????? ?????? ?????????
OBS (Organization Breakdown Structure)
???1 ???2 ???3 ???4
??????1 x d
??????2 x p
??????3 D x




WBS(Work Breakdown Structure)
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