Please note : This help page is not for the latest version of Enterprise Architect. The latest help can be found here.

State Toolbox

The State Toolbox is used to develop State Machine diagrams, to show the enableable states a Class or other element might be in and the transitions from one state to another. These diagrams are often placed under a Class element in the Project Browser to illustrate how a particular element changes over time. States can have substates; for example, Accelerate and Brake might be substates of Active.

State Toolbox pages



See also



Except where discussed here, each element and relationship that you can create using these Toolbox pages is described in the UML Elements and UML Connectors sections of the Help.


Event is used to create a basic Send element (the default) or Receive element on the State Machine diagram.


Behavioral Diagram Elements

Structural Diagram Elements

UML Connectors




·To add an element to the currently-open diagram, click on the appropriate icon and drag it into position on the diagram; set an element name and other properties as prompted
·To add a relationship, click on the appropriate icon, then click on the start element in the diagram and drag to the end element

Learn more