Arrow Diagramming Method (ADM) [Technique]
The arrow diagramming method (ADM) refers to a schedule network diagramming technique in which the schedule activites within a given project are represented by the use of arrows. The beginning of the schedule activity is represented by the tail, or base, of the arrow. The pointed end of the arrow represents the endpoint of a specific schedule activity, and the length of the arrow can loosely represent the time in between (although, it should be noted that the length should not be interpreted as any literal measure as to the time expected for the schedule activity to take to complete, as often these arrows are scaled to fit in the presentation of chart that is being populated). The points at which these schedule activities are to be connected are referred to as nodes. The connection of these schedule activities is done to demonstrate the sequence or order in which these activities should take place, and this connect point, or node, is usually represented by a small circle or sphere. See also precedence diagramming method.
This term is defined in the 3rd edition of the PMBOK but not in the 4th.
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- Arrow
An arrow in the literal sense is a projectile designed to be fired from a bow at a fixed or moving target, often used in hunting or contests of sport. In a more broad sense, an arrow refers to any directional symbol that offers guidance as to the path one should follow (often used in [...]
- Precedence Diagramming Method
The precedence diagramming method (which is also known by the three letter anagram PDF) refers to a specific project management technique in which the project management team and or the project management team leader employs a schedule network diagramming technique in order to graphically represent any known and preexisting schedule activities via the use of [...]
- Dummy Activity
A dummy activity is a simulated activity of sorts, one that is of a zero duration and is created for the sole purpose of demonstrating a specific relationship and path of action on the arrow diagramming method. Dummy activities are a useful tool to implement when the specific logical relationship between two particular activities on [...]
- Activity-on-Arrow (AOA)
See arrow diagramming method This term is defined in the 3rd edition of the PMBOK but not in the 4th.
- Node
In the context of project management, the term node refers to any one of a number of miscellaneous defining points that exist as part of the project’s schedule network. These specific definition points that exist as part of the project’s schedule network in most cases have been pre-determined by the project management team and or [...]