2008年10月5日 星期日

CPI 的考題……

這一題的答案,我是用估出來的,我不知道有沒有方式可以很精準的算出那一個答案……
有的話,麻煩分享你的算法……

You are project manager working on a construction project to build a bridge. You have completed half of the planned objective. The total planned cost at this stage is $500. The actual physical work that has been completed at this stage is worth $400. You have already spent $1000 on the project . what is the CPI?
A. 1.0
B. 0.5
C. 4.0
D. 0.4





The answer of this question is D

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1 則留言:

Michael 提到...

Although I can't choose the right answer at the first time, I realize the right answer.
If you can't choose the answer, you don't recongnize EV/PV/AC in this test.
total planned cost is PV is 500.
actual work is EV is 400.
already spent is AC is 1000.
so
CPI = EV/AC = 400/1000 = 0.4
SPI = EV/PV = 400/500 = 0.8
this project is behind schedule and over budget.