Tevékenységdiagram

Tevékenységdiagram, or activity diagram, is a type of flowchart that illustrates the flow of a system's actions. It is a part of the Unified Modeling Language (UML) and is used to model dynamic aspects of a system. Activity diagrams are particularly useful for visualizing the step-by-step process of a workflow, business process, or a specific operation within a larger system.

The basic elements of an activity diagram include actions, which represent individual steps or tasks; decisions, which represent branching points where the flow can take different paths based on conditions; and merges, which bring different paths back together. Control flow arrows indicate the sequence of actions. Start and end nodes represent the beginning and termination of the activity. Swimlanes can be used to partition activities among different actors or components, showing who or what is responsible for each step.

Activity diagrams are valuable for understanding complex processes, identifying bottlenecks, and communicating workflows to stakeholders. They can be used in software engineering to model business logic and user interactions, as well as in business process management to document and improve existing procedures. Their visual nature makes them easy to comprehend, facilitating collaboration and design.