Question

do you know about use case in software engineering?

Answer 1

@malihe Actually, A use case is a method for describing the behaviour of a system from a user's point of view. It describes an interaction between a user and a system that produces some useful outcome. For example: withdrawing money from an automatic teller machine.

Each interaction usually starts with an initial stimulus from a user (also called an actor) and proceeds through a series of stimuli and responses between the actor, the system, and possibly other actors, until the interaction reaches its logical conclusion (the required post condition).

A use case is often specified informally. An overly formal approach defeats the purpose, which is to quickly capture system requirements from the user's point of view.
Ref:
http://www.cse.msu.edu/~cse870/Lectures/Notes/03b-use-cases-notes.pdf
http://www.chambers.com.au/glossary/use_case.php


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