UML Behaviour Diagrams

UML diagrams that present the dynamic aspects of the system.

UML Activity Diagram: represents the business and operational step-by-step workflows of components in a system. An activity diagram shows the overall flow of control.
UML State Machine Diagram: standardized notation to describe many systems, from computer programs to business processes.
UML Use Case Diagram: shows the functionality provided by a system in terms of actors, their goals represented as use cases, and any dependencies between them.
UML Communication Diagram: shows the interactions between objects or parts in terms of sequenced messages. They represent a combination of information taken from Class, Sequence, and Use Case Diagrams describing both the static structure and dynamic behaviour of a system.
UML Interaction Overview Diagram: are a type of activity diagram in which the nodes represent interaction diagrams.
UML Sequence Diagram: shows how objects communicate with each other in terms of a sequence of messages. Also indicates the lifespans of objects relative to those messages.
UML Timing Diagram: are a specific type of interaction diagram, where the focus is on timing constraints.

The last four of these are collectively known as the UML Interaction Diagrams

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