2019-06-11 每日一题

A project manager discovers that the critical ratio is 0.7. What does this indicate?
A. The cost performance Index(CPI) is better than planned.
B. The CPl is worse than planned
C. The project's progress is worse than planned.
D. The project's progress is better than planned.
项目经理发现临界比是 0.7。这说明什么？
A.成本绩效指数（CPI）比计划好。
B.CPI 比计划差。
C.项目进展比计划差。
D.项目进展比计划好。
答案：C
解析：临界比的计算方法是CPI*SPI，临界比等于0.7，说明项目进展不好（也叫临界
指数，是由梅瑞狄斯和曼特尔在1985年提出来的）。