Widya on Learning

UML Use Case Diagram is :
The use case model captures the requirements of a system.
Use cases are services or functions provided by the system to its users.
A use case is a set of scenarios that describing an interaction between a user and a system.
Use case diagrams model the functionality of a system using actors and use cases.


The two main components of a use case diagram are use cases and actors.


An actor is represents a user or another system that will interact with the system you are modeling.
A use case is an external view of the system that represents some action the user might perform in order to complete a task.


Below is my sample use case for GPS system :
use case for admin side;

use case for client side;