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What is the difference between ADM and PDM?

Please explain the difference(s) between ADM (Arrow Diagramming Method) and PDM (Predecessor Diagramming Method). For me they seem to be the same.
asked 7 years ago by anonymous

1 Answer

ADM (Arrow Diagramming Method)  is the same as AOA (Activity On Arrow)
PDM (Predecessor Diagramming Method) is the same as AON (Activity On Node)

- ADM requires the use of a dummy activity to reflect relationships between events. In PDM yo don't have a dummy.
- In ADM, an activity is represented by an arrow, and events are represented by a point. In PDM, an activity is represented by a box, arrows represent dependencies.
answered 7 years ago by FastProjectManager (10,100 points)

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