SOFTWARE ENGINEERING

SOFTWARE DESIGN

OBJECT ORIENTED DESIGN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which is the best description of the actor in the Use case model?
A
limited to the user who interacts with the system
B
any entity outside the system that interacts with the system
C
limited to the systems for which it interacts with the system
D
The actor that provides data to the system
Explanation: 

Detailed explanation-1: -Actor: An actor represents an external entity that interacts with a system. Since it is external to the system, the actor itself is not fully modeled by the system. However, in order to design the interactions between an actor and a system, the latter may have a simplified model of the actor.

Detailed explanation-2: -Actors are external entities that interact with your system. It can be a person, another system or an organization.

Detailed explanation-3: -Actors can be people, other systems, time triggers, or event triggers.

There is 1 question to complete.