Arrow diagramming method
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Arrow Diagramming Method (ADM) is a network diagramming technique in which activities are represented by arrows.
It is used for scheduling activities in a project plan.
The precedence relation between activities is represented by circles connecting to one or more arrows. The length of the arrow represents the duration of the relevant activity.
Sometimes a "dummy task" is added, to represent a dependency between tasks, which does not represent any activity.
Use of the Arrow Diagramming Method as a common project management practice has declined with the adoption of computer-based scheduling tools. The Precedence Diagram Method (PDM) is often favored over the Arrow Diagraming Method.
The Arrow Diagramming Method is also known as the Activity-on-Arrow (AOA) method.
ADM network drawing technique the start and end of each node or event is connected to an arrow.
The start of the arrow comes out of a node while the tip of the arrow goes into a node. Between the two nodes lies an arrow that represents the activity.
The event represented by the circular node consumes neither time nor resources.
- A node is a specific, definable achievement in the project.
- It has zero duration and consumes nil resources.
- All activities that lead into a node must be completed before the activity lies following this node can start.
See also
References
- ^ A Guide to the Project Management Body of Knowledge, 4th Edition: ANSI/PMI 99-001-2008 (copyright Project Management Institute, Inc. 2008)
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