Example: Login Use Case Specification

Course Registration System

Use Case Specification

Login Use-Case

Version: Draft

Revision History

Table of Contents

1. Brief Description

2. Flow of Events

   2.1    Basic Flow - Login

   2.2    Alternative Flow

   2.2.1       Invalid Name / Password
3. Special Requirements
4. Preconditions
5. Postconditions
6. Extension Points

Login Use Case

- Brief Description

This use case describes how a user logs into the Course Registration System.

The actors starting this use case are Student, Professor, and Registrar.

2.    Flow of Events

The use case begins when the actor types his/her name and password on the login form.

2.1    Basic Flow - Login

1. The system validates the actor’s password and logs him/her into the system.
2. The system displays the Main Form and the use case ends.

2.2    Alternative Flows

2.2.1Invalid Name / Password

Issue: Need to decide whether password security is necessary for this application.

3.    Special Requirements

Special requirements will be determined during the next iteration.

4.    Preconditions

Preconditions will be determined during the next iteration.

5.    Postconditions

Postconditions will be determined during the next iteration.

6.    Extension Points

1. Extension points of the business use case will be identified during the Elaboration Phase.