Precedence Diagramming Method PDM

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The precedence diagramming method (PDM) is what most project management software programs use to sequence activities. Precedence diagrams use boxes or rectangles to represent the activities (called nodes). The nodes are connected with arrows showing the dependencies between the activities. This method is also called activity on node (AON).

The minimum information that should be displayed on the node is the activity name, but you might put as much information about the activity on the node as you'd like. Sometimes the nodes are displayed with activity name, activity number, start and stop dates, due dates, slack time, and so on. (I'll cover slack time in the section "Develop Schedule Tools and Techniques" later in this chapter.)

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Project Management Made Easy

Project Management Made Easy

What you need to know about… Project Management Made Easy! Project management consists of more than just a large building project and can encompass small projects as well. No matter what the size of your project, you need to have some sort of project management. How you manage your project has everything to do with its outcome.

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