UCM_PLA

Represents the function within the system

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One use case is needed by another in order to perform a task

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Specifies a role played by someone or some other system that interacts with the subject.

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A behaviorally related sequence of steps, both automated and manual, for the purpose of completing a single business task

• Use case diagram

• Use case narrative

• Use case

• Use case dependency diagram

A bank customer stops by her bank’s ATM to withdraw money from her checking account. In this case, who is the primary business actor?

• Bank

• Customer

• Bank teller

• Money withdrawal authorization company

The use case diagram ...

• Specifies the functional decomposition of a system

• Comprises classes and objects

• Specifies who performs which tasks with a system that is going to be developed

• Models the time flow within a system

Which of the following UML diagrams has a static view?

• Collaboration

• Use case

• State chart

• Activity

What is an actor in a use case diagram?

• A representation of a system component

• Any entity interacting with the system

• A class representing a specific behavior

• Represents actions or functions that the system needs to perform

How are actors represented in a use case diagram?

• As stick figures

• As rectangles with rounded corners

• As ovals

• As arrows or lines

What are use cases in a use case diagram?

• A representation of a system component

• An external entity interacting with the system

• System functionalities or processes

• Relationships between actors