NIELIT 2021 Dec Scientist B - Section B: 68

Question

Which type of illustration lists the functionality of whole project $?$

• A. $\text{DFD} – 0$
• B. Class Diagram 
• C. Use case Diagram 
• D. State Diagram

Answer 1

The correct answer is C. Use case diagram.

A use case diagram is a type of illustration that lists the functionality of the whole project. It provides a high-level view of the system's functionality and shows the interactions between actors (users, external systems, or other entities) and the system.

In a use case diagram, the system's functionality is represented by use cases, which describe specific actions or interactions between the actors and the system. Use cases capture the goals or tasks that the system is designed to support.

By representing the functionality of the entire project, a use case diagram helps stakeholders understand the overall scope and purpose of the system. It visually represents how different actors interact with the system and the specific functionalities they can perform.

Therefore, the correct answer is option C.