Aktivitätsknoten

Aktivitätsknoten, often translated as "activity nodes," are fundamental components in process modeling, particularly within the Unified Modeling Language (UML). They represent a single step or action within a workflow or activity diagram. These nodes depict a point where work is performed or a specific behavior occurs. A key characteristic of an Aktivitätsknoten is that it signifies a period of time during which something happens. This distinguishes it from other nodes, such as decision nodes or fork nodes, which represent points of transition or branching. The completion of the action represented by an Aktivitätsknoten triggers the transition to the next node in the process flow. Aktivitätsknoten can be further categorized into different types, such as simple actions, method calls, or sending signals, depending on the level of detail required in the model. They are essential for visually breaking down complex processes into manageable and understandable steps, aiding in analysis, communication, and implementation.