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Self-Message

An example of a UML Sequence diagram showing a Self-message using Sparx Systems Enterprise Architect.

A Self-Message reflects a new process or method invoked within the calling lifeline's operation. It is a specification of a Message, typically in a Sequence diagram.

Self-Message Calls indicate a nested invocation; new activation levels are added with each Call.

Self-Message as Return

It is possible to depict a return from a Self Message call.

An example UML Sequence Diagram showing use of Self-message and return Self-message.

Create a Self Message return

Step

Action

1

Create a second Self Message at the end of execution.

2

Double-click on the Message name to open the Properties window for the Message.

3

Select the 'Is Return' checkbox.

4

Raise the Activation level of the return.

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Self-message connector

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