75、Precedence Diagramming Method (PDM) is a method used in activity sequencing. There are four types of dependencies or precedence relationships in PDM. The initiation of the successor activity depends upon the completion of the predecessor activity is called ( ).
A.Finish-to-Start B.Finish-to-Finish
C.Start-to-Start D.Start-to-Finish
正确答案:A
顺序图法包括四种依赖关系或先后关系:结束→开始、结束→结束、开始→结束和开始→开始
1)结束→开始:某活动必须结束,然后另一活动才能开始。
2)结束→结束:某活动结束前,另一活动必须结束。
3)开始→开始:某活动必须在另一活动开始前开始。
4)开始→结束:某活动结束前,另一活动必须开始。
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