SOFTWARE ENGINEERING

SOFTWARE DESIGN

OBJECT ORIENTED DESIGN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In a use-case diagram, an actor is represented by:
A
A role is a person, another hardware device or system
B
Same user performing different actions
C
A user, customer and not interested in their role
D
A physical system or a hardware device with its interfaces
Explanation: 

Detailed explanation-1: -"An Actor models a type of role played by an entity that interacts with the subject (e.g., by exchanging signals and data), but which is external to the subject.” “Actors may represent roles played by human users, external hardware, or other subjects.

Detailed explanation-2: -Actors. Primary actors should be to the left side of the diagram – This enables you to quickly highlight the important roles in the system. Actors model roles (not positions) – In a hotel both the front office executive and shift manager can make reservations.

There is 1 question to complete.