One of the options given below is not a valid relationship in the precedence diagramming method, which one is it?

Precedence diagramming method

Precedence diagramming method is also known as activity on node. In this diagram, activities are done on node. This diagram displays the logical and sequential activities in the project. Activities are shown in rectangle and the relationships are shown in arrows. Charlie is working on this diagramming method. And his manager Victor asked him about the relationships available in the Precedence diagramming method. Charlie explained to him the valid relationships available in the diagram. One of the options given below is not a valid relationship in the precedence diagramming method, which one is it?

A. Start-to-Start.
B. Finish-to-Start.
C. Start-to-End.
D. Finish-to-Finish.

Answer: Option C is not a valid option.

Valid relationship is Start-to-Start, Start-to-Finish, Finishto- Start, and Finish-to-Finish.
  • Start-to-Start : Successor activity cannot be started until a predecessor activity has started.
  • Start-to-Finish : Successor activity cannot be finished until a predecessor activity has started
  • Finish-to-Start : Predecessor activity must be completed before the successor activity can be initiated.
  • Finish-to-Finish : Successor activity cannot finish until a predecessor activity is finished.
By on