CCBA® and CBAP® Certifications Study Guide

Key things to know when using this technique

A use case describes how a primary actor interacts with a system. It also shows any interactions between use cases or secondary actors (such as timers or external system triggers).

Use cases are illustrated in a use case diagram that consists of the following notational elements:

• Use cases: The functionality of a solution.
• Actors: The users that interact with the solution in different ways.
• Relationships: Show how the actors interact with the different use cases shown in the diagram.

There are two types of relationships between use cases—namely the following:

• Include: This relationship shows that the use case will always include the functionality of another as part of its execution.
• Extend ...