Use Case Diagram

What does a use case diagram represent?

• It represents the interaction between actors and the system.

• It represents the internal structure of a system

• It describes the hardware architecture of a system

• It shows the sequence of steps to perform a task

What is the main purpose of a use case diagram?

• Visualize the interactions between actors and the system

• Detail the design of the database

• Represent the physical architecture of the network

• Show the internal structure of the system

What are the main elements used in a use case diagram?

• actors and use cases

• objects and methods

• attributes and relationships

• classes and inheritances

Why is it important to identify the actors in a use case diagram?

• Identifying the actors does not provide relevant information in a use case diagram

• It is not necessary to identify the actors in a use case diagram

• The actors in a use case diagram are irrelevant for system development

• Identifying the actors in a use case diagram helps understand who interacts with the system and what functionalities they use, enabling the definition of precise requirements and covering all user needs.

What is a use case in a use case diagram?

• Describes an interaction between an actor and the system to achieve a specific goal.

• Is a visual element in the diagram without specific meaning

• Indicates the sequence of steps to perform a task

• Represents the data structure of the system

How are the relationships between actors and use cases represented in a use case diagram?

• Dashed lines

• Dotted arrows

• Colored boxes

• Solid lines

What benefits does creating a use case diagram bring to software development?

• Facilitates visualization of interactions, identification of requirements, and effective communication.

• Improves source code efficiency

• Reduces project complexity

• Increases compilation speed

What is the difference between a use case diagram and an flow chart?

• In a use case diagram, the classes of the system are represented, while in an activity diagram, the relationships between objects are shown.

• The main difference is that a use case diagram is static, while an activity diagram is dynamic.

• A use case diagram focuses on the internal structure of the system, while an activity diagram centers on interaction with users.

• The difference lies in the fact that a use case diagram shows the interaction between actors and the system, while an flow chart details the internal workflow of the system.

What tools can be used to create use case diagrams?

• Adobe Illustrator

• Draw.io

• Canva

• Google Docs

Complete this word: the UML Diagram in ___ describes an actor and function to represent a program