The diagram that helps in understanding and representing user requirements for a software project using UML (Unified Modeling Language) is:
(A) Entity Relationship Diagram
(B) Deployment Diagram
(C) Data Flow Diagram
(D) Use Case Diagram
Answer: (D)
Explanation: – Entity Relationship Diagram -Relationship between entities of the system
– Deployment view – Model the components required for deploying the system.
– Data Flow Diagram-graphical representation of the “flow” of data
– Use Case view – Presents the requirements from external side of a system.