Elements of the use case diagram
The picture below shows the elements of a use case diagram.
- Use case: This element is used to identify a goal of the system.
- Actor: This element could represent a role played by a person, a system, or a device that will use the system.
- Association: This element describes the fact that two elements interact with each other.
- System: This element represents the system in the context of the actors who use it and the features it must provide for them.