项目经理根据甲方要求估算了项目的工期和成本。项目进行到20天的时候,项目经理对项目进展情况进行了评估,得到各活动实际花费成本(如下表所示)。此时ABCDF已经完工,E仅完成了二分之一,G仅完成了三分之二,H尚为开工。
【问题1】 (6分)
基于以上案例,项目经理绘制了单代号网络图,请将下图补充完整。
【问题2】 (5分)
基于补充后的网络图:
(1)请指出项目的工期、关键路径和活动E的总时差。
(2)项目经理现在想通过赶工的方式提前一天完成项目,应该压缩哪个活动最合适 为什么
【问题3】(6分)
请计算项目当前的PV、EV、AC、CV、SV,并评价项目进度和成本绩效。
正确答案及解析
正确答案
解析
【问题1】
(每空0.5分,共6分)
【问题2】
5分:(1)工期28天(1分),关键路径ACDHI(1分),E总时差5;(1分)
(2)I活动最合适,(1分)理由:I活动是关键活动并且赶工1天增加的成本额相比最低,压缩以后I活动还在关键活动。(1分)
【问题3】
6分:PV=A+B+C+D+E+F+G=30万元(0.5分)
EV=A+B+C+D+(1/2)*E+F+(2/3)*G=28万元(1分)
AC=23万元(0.5分)
SV=28-30=-2<0,(1分)
CV=28-23=5>0,(1分)
成本节约(1分),进度滞后(1分)
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