???(?)????(Earned Value Management, EVM)??????????,??????????????????????????????????

1
???(?)???????
???(?)????(Earned Value Management,
EVM)??????????,??????????????????????????????????
2
??????(?)???
1. ????
Contract Budget Base
PM Baseline
2. ????

3. ????
100
40
60
Time
15
25
30
30
3
??????(?)?????
??????,?????????????????
?? ??100????,10???,??20,000?, 5???9,500?
??????? ??????????
??????? ???????????
4
???????
??,?????9,500?, ???????????? 9,500??????
?????????????,???????/??????
5
????????
???????????????? ??????????(Dimension)
?????
(Earned)

??
vs
??
??

(Actual)
(Planned)
500
10,000
9,500
6
?????(?)?????
???(?)????????????????????
?? ???????? 50??,???
?? 200 ????????????
????????????
3
2
???
1
???
???
????
8,000
10,000
9,500
(40?? 200)
7
???(?)?????

• ???????????????(?????)???

???????,?????!
8
?????(?)??
???
???
????
10,000
8,000
9,500




????
(2,000) (1500)
????
??,???????,??????,
???????2,000??????????
????? 1500 ???
9
???????
Time Now
???? (21)
???? (26)
10
????????
Time Now
??? (21)
???? (26)
??? (16)
11
??EVM?????????
?? ?? ??
????????? (How much work should be done)? ??? (Planned Value) PV (BCWS )
????????? (How much work is done)? ??? (Earned Value) EV (BCWP)
???????????? (How must did the Is done work cost)? ???? (Actual Cost) AC (ACWP)
????????????? (What was the total job supposed to cost)? ?????(Budget at Completion) BAC
?????????????? (What do we now expect the total job to cost)? ????? (Estimate at Completion) EAC
12
????(?)

• ???????? (What is done )? --- EV (BCWP)
• ???????? (What should be done)?
• --- PV (BCWS)
• ??????
• ????? (Schedule Variance)?
• --- SV
• ?? SV EV (BCWP) PV (BCWS)

13
????(?)

• ???????? (What is done )?
• --- EV (BCWP)
• ???????????? (Actual cost of What is
• done)?
• --- AC (ACWP)
• ??????
• ????? (Cost Variance)?
• --- CV
• ?? CV EV (BCWP) AC (ACWP)

14
????(?)

• ???????????? (Total job supposed
• to cost)? --- BAC
• ??????????????? (Total job
• expected to cost )?--- EAC
• ??????
• ????? (Variance at completion )?
  
• --- VAC
• ?? VAC BAC EAC

15
??????????
???? (CV) ??? (EV) - ???? (AC) ???? (SV) ???
(EV) - ??? (PV) ???? ?????? (CPI) ???
(EV) ???? (AC) ??????(SPI)
??? (EV) ???(PV) ?????
??? (EV) ??????(BAC) ????????
????????????
16
??????
??
EAC
?????? (??)
BAC
ETC
???? ???
??? (PV)
???? (CV)
???? (AC)
????(SV)
??? (EV)
? ?
17
?????(?)?????
18
?EVM??????

• ???????????????????????
• ?????????????????
• ???????
• ?????????? ???????
• ???? ??????
• ??????????????

19
???????---???

• ???????????????????
• ??A???? 12,000?? B ? 10,000
• ?? A ??5 ????,????? B ??? 4 ?
• ???????(BAC)???? ???????????
• ???A?????5??,??????????
• ?? A ????,???? 2?,????????10,000
• ?????????????,???????????
• ???? Cost variance EV AC 12000-10000
• 
  2,000
• ???? T (original) T (new) 9-11 -2days

20
???????---EVA?

• ?????????(EVA)??????????
• ?????????A 75???,?????????????????????(linear
  relationship)
• ??????????(EV)?.75 X 12,000 9,000
• ???????????A?? 9,000 ?????,???????????
• ????????? AC 10,000
• ???????? PV 12,000

21
???????---EVA?????

• ????
• ?????? 2,000
• ??EVA???CV EV AC 9000-10000
• 
  -1,000
• ???EVA??,????(CV)???????????????
• ??????CPI EV/AC 9000/10000.9
• ??????????????????? 0.9 ???,????????,???????????
• ??????? EAC BAC/CPI 22000/.9 24,444
• ????????? ETC EAC AC 24,444-10,000
  
• 
  14,444
• ????????EAC BAC 24,444-22000 2,444

22
???????---EVA?????

• ????
• SV EV-PV 9,000 12,000 -3,000
• ??????9,000???? ??????3,000??????????????
• ???????????,?????????
• SPI EV/PV 9,000/12,000 .75
• T (????) T (????)/SPI 9/.75 12days
• ??????12 9 3 days

23
EVM? ?
???????????????? ??????????????WBS,???????????????
,?????????????????