! You are browsing an archive website for Modelio 1.x. Click here to visit the official website for most recent versions of Modelio

UML Use Case diagram


UML Use Case diagram belong to Behavior diagrams family. Use Case diagram allows to modelize interactions between actors and system.

Below, there are some examples showing how to represent these interactions using Use Case diagrams.


Use case modeling is a very popular practice in UML. It helps formalize how an application is intended to be used, who the expected users are, and what kind of use each user will make of the application.

Modelio supports use case modeling with all its subtleties, such as include or extend links, and extension points.

Use case diagrams

Use case diagrams