The two main items in a UML use case diagram are:
A)Entity and attribute
B)Data flow and data store
C)Database and table
D)Actors and use cases
E)Principals and students

Question

Quizplus · Accepted Answer

The two main items in a UML use case diagram are actors and use cases. Actors are the external entities that interact with the system, and use cases are the specific actions or behaviors that the system performs in response to the actors' interactions. Entity and attribute, data flow and data store, database and table, principals and students are not the main items in a UML use case diagram.

The Two Main Items in a UML Use Case Diagram