Please note : This help page is not for the latest version of Enterprise Architect. The latest help can be found here.
Internal Transition
If you need to define an internal Transition in a State, you can do so by creating an external self-Transition connector (where the Source and Target are the same State) and then changing the connector kind property. The self-Transition connector is then removed from the diagram and the internal Transition displays in a compartment inside the State element.
Access Open the State Machine diagram containing the State element
Define an Internal Transition
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1 |
On the State element, create a Transition connector issuing from and terminating in the element (a self Transition). Right-click on the connector and select the Properties context menu option to display the Properties dialog.
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2 |
Select the Constraints tab and define any guard, effect and trigger for the Transition.
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3 |
On the Advanced tab, click on the drop-down arrow in the value field for the kind property and select internal.
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4 |
Click on the OK button. The Transitions display in the same compartment as internal activities (exit/, do/,entry/).
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Notes
| · | To view or edit the properties of the internal Transition, double-click on the entry in the compartment within the State |
| · | If you need multiple internal transitions, including those with the same Trigger but different guards, you create them separately with each Transition having its own guard |
OMG UML Specification
The OMG UML specification (UML Superstructure Specification, v2.4.1, p. 583) states:
An internal transition executes without exiting or re-entering the state in which it is defined. This is true even if the state machine is in a nested state within this state.
