DISCUSSION ASSIGNMENT UNIT 3 SOFTWARE ENGINEERING 1

DISCUSSION ASSIGNMENT UNIT 3


SOFTWARE ENGINEERING 1


What is the difference between a scenario and a use case? When do you use each construct?

Explain with the help of 1-2 suitable examples.


What is the difference between a scenario and a use case?


A scenario is predicted a sequence of an event that describing an interaction between a system

and a user whiles a use case is the detailed explanation of the scenario which involves describing

the main goal of the scenario.


When do you use each construct?


A scenario is constructed when we need to capture the required range of future conditions of an

event. This will help to know the kind of requirements needed for such kind of an event to occur.


A use case is constructed when the users want to interact with the system with an aim of

achieving the users’ goals.


1 – 2 suitable examples


Scenario


A person want to purchase online items in Alibaba Express, a scenario occurs when the customer

want to buy vehicle tracking device and it software. The scenario goes through this;


 Customer to create account

 Log in