Arrow diagramming method: Difference between revisions

Revision as of 02:03, 17 September 2011

Revision as of 21:07, 5 October 2012

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An '''arrowArrow diagramming method''' (ADM) is a network diagramming technique in which activities are represented by arrows.<ref>CPM in Construction – A Manual for General Contractors(Copyright 1965 by the Associated General Contractors of America)</ref>. ADM is also known as the activity-on-arrow (AOA) method.

ADM is used for scheduling activities in a [[project plan]]. Precedence relationships between activities are represented by circles connected by one or more arrows. The length of the arrow represents the duration of the relevant activity. ADM only shows finish-to-start relationships, meaning that each activity is completed before the successor activity starts.

It is used for scheduling activities in a [[project plan]].

<br />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.

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[[Image:Arrow Diagramming Method.png|500px|ADM example]]

Use of the ADM as a common project management practice has declined with the adoption of computer-based scheduling tools. The In addition, the precedence diagram method (PDM), or activity-on-node, is often favored over the ADM.

The ADM is also known as the activity-on-arrow (AOA) method, it only show finish-to-start relationship.

<ref>A Guide to the Project Management Body of Knowledge, 4th Edition: ANSI/PMI 99-001-2008 (copyright Project Management Institute, Inc. 2008)</ref>