8.1 Interaction Diagrams Interaction diagrams are used to model the dynamic aspects of a software system They help you to visualize how the system runs An interaction diagram is often built from a use case and a class diagram - The objective is to show how a set of objects accomplish the required interactions with an actor www.oseng.com O Lethbridge/Laganiere 2001 Chapter 8: Modelling Interactions and behaviour© Lethbridge/Laganière 2001 Chapter 8: Modelling Interactions and Behaviour 2 8.1 Interaction Diagrams Interaction diagrams are used to model the dynamic aspects of a software system • They help you to visualize how the system runs. • An interaction diagram is often built from a use case and a class diagram. —The objective is to show how a set of objects accomplish the required interactions with an actor