Activity Diagram - Send Signal Notation

This section describes the Send Signal Notation used in a UML Activity Diagram. A Send Signal Notation represents an action that sends a signal to outside and continues without waiting for any responses.

A Send Signal Notation is a graphical notation used in a UML Activity Diagram to represent a send signal action that sends a signal to outside of the activity. The send signal action does not wait for any responses from the receiver of the signal. It ends itself and passes the execution control to the next action.

A Send Signal Notation is drawn as a convex pentagon with its name placed inside. For example, the "Notify Customer" send signal action in an order processing activity can be drawn as a Send Signal Notation in a UML activity diagram as shown below:
UML Notation Shape - Send Signal

Last update: 2014.

Table of Contents

 About This UML Tutorial Book

 Introduction of UML (Unified Model Language)

 UML Class Diagram and Notations

UML Activity Diagram and Notations

 What Is an Activity Diagram?

 Activity Diagram - Action Notation

 Activity Diagram - Control Flow Notation

 Activity Diagram - Start and Final Notations

 Activity Diagram - Decision Notation

 Activity Diagram - Merge Notation

 Activity Diagram - Fork Notation

 Activity Diagram - Join Notation

 Activity Diagram - Object Notation

Activity Diagram - Send Signal Notation

 Activity Diagram - Accept Event Notation

 Activity Diagram - Partition (Swimlane) Notation

 Activity Diagram - Frame Notation and Parameters

 UML Sequence Diagram and Notations

 UML State Machine Diagram and Notations

 UML Use Case Diagram and Notations

 MS Visio 2010 - UML Drawing Tool

 References

 PDF Printing Version