Which of the following is true regarding the system boundary in a Use Case Diagram (UCD)?A.The system boundary is a visual design element and doesn't impact the functionality of the system.B.The system boundary is drawn as a rectangle that encapsulates all actors and use cases.C.The system boundary is optional and can be omitted in UCDs.D.The system boundary is used to represent the system's internal components.
Question
Which of the following is true regarding the system boundary in a Use Case Diagram (UCD)?A.The system boundary is a visual design element and doesn't impact the functionality of the system.B.The system boundary is drawn as a rectangle that encapsulates all actors and use cases.C.The system boundary is optional and can be omitted in UCDs.D.The system boundary is used to represent the system's internal components.
Solution
The correct answer is A. The system boundary in a Use Case Diagram (UCD) is a visual design element and doesn't impact the functionality of the system. It is used to visually separate the system's internal actions (use cases) from the external entities interacting with it (actors). It is not drawn to encapsulate all actors and use cases (option B is incorrect). While it is commonly included in UCDs for clarity, it is technically optional and can be omitted (option C is incorrect). Lastly, the system boundary does not represent the system's internal components (option D is incorrect). It merely separates the system from the external environment.
Similar Questions
Which of the following statements is applicable to an Actor in a Use Case Diagram?Select one:An actor specifies a role played by a user or an external system that interacts with the system being depictedAn actor is a person who is actively involved in the design of the systemAn actor can be placed inside the system boundary to show that it belongs to the systemEach actor in a Use Case Diagram can interact with only one Use Case
What is the purpose of a use case diagram in UML?To represent the dynamic behavior of a systemTo show the interactions between objects over timeTo describe the functional requirements of a systemTo depict the physical components of a system
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