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How to Draw Arrow Diagramming Method (ADM)




It is a network diagramming technique in which activities are represented by arrows. The start and end of each node or event are connected to an arrow. Between the two nodes lies an arrow that represents the activity.

  • Also called activity-on-arrow (AOA) network diagrams.

  • Activities are represented by arrows.

  • Nodes or circles are the starting and ending points of activities.

  • Can only show finish-to-start dependencies.

Single Activity on AOA network diagram

Connection of Two Activities



Examples of different dependencies


Dummy activity

Zero duration, consumes no resources, drawn as dashed lines, and used to adjust the network diagram


Example 1



Introduction to Network Diagram (Activity on Arrow)




Draw Arrow Diagram Method



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