Activity Network in Software Engineering

Activity Network:

An activity network shows the different activities making up a project, their estimated durations, and their interdependencies.

Activity on Node (AON):

In this representation, each activity is represented by a rectangular (some use circular) node and the duration of the activity is shown alongside each task in the node.

Activity on Edge (AOE):

In this representation tasks are associated with the edges. The edges are also annotated with the task duration. The nodes in the graph represent project milestones. Activity networks were originally represented using activity on edge (AOE) representation.