StupidBeauty
Read times:289Posted at:Sun Dec 27 19:31:30 2009

这是指,在进行估算时,估算者为估算的对象估算出一个乐观值、可能值、悲观值,并且将这三个值放到一个公式中计算,得出来的值作为最终的估算值。

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Posted at:Mon Dec 28 03:40:31 2009ys_sunshine踩踩~~~
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