Activity Diagram

1 Definition

An activity diagram is a UML diagram that is used to model a process. It models the actions (or behaviors) performed by the components of a business process or IT system, the order in which the actions take place, and the conditions that coordinate the actions in a specific order. Activity diagrams use swim lanes to group actions together. Actions can be grouped by the actor performing the action or by the distinct business process or system that is performing the action.
defined by Modern Analyst