Use Case Diagram - Use Case Notation

This section describes the Use Case Notation used in a UML Use Case Diagram. A Use Case Notation presents a set of activities performed by actors on an object. When it is completed, a use case will yield a result that can be observed.

A Use Case Notation is the primary graphical notation used in a UML Use Case Diagram to represent a set of activities performed by actors on an object. When it is completed, a use case will yield a result that can be observed.

A Use Case Notation is drawn as an ellipse with the use case name placed inside. For example, "Order Food" is a set of activities on a restaurant object involving several actors like client, waiter, chef, etc. This set of activities can be drawn as a Use Case in a UML use case diagram as shown below:
UML Notation Shape - Use Case

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

 UML Sequence Diagram and Notations

 UML State Machine Diagram and Notations

UML Use Case Diagram and Notations

 What Is a Use Case Diagram?

Use Case Diagram - Use Case Notation

 Use Case Diagram - Actor Notation

 Use Case Diagram - Association Notation

 Use Case Diagram - Extend Notation

 Use Case Diagram - Include Notation

 MS Visio 2010 - UML Drawing Tool

 References

 PDF Printing Version