Question

Contrast a use case with a functional requirement. Provide one (1) example of each from the online bookstore project discussed in the online course content. Also, discuss the relationship between use-cases and functional requirements as part of your answer.

Online Bookstore Use-Case Scenarios (Pick any two)

A student looks up the textbooks for a specific course they are registered to take in the upcoming semester.

A faculty member places a book order for a course they will be teaching in the upcoming semester.

An inventory clerk for the online bookstore needs to look up the stocking level (current inventory) of a non-textbook supply item (pens, papers, spiral notebooks, etc.)

A visitor to the online bookstore wishes to send an online comment to a particular department of the bookstore organization.

Answer 1

Use case :

1.The use cases portray run of the mill communications between the clients of the framework and the framework itself. They give an account of how the framework is utilized and each utilization case centers around a typical client objective.

2.Use case portrays how a client gets something of advantage from a framework. It can likewise explain what can turn out badly and what is done about it.

3.Each use case incorporates three primary components:

Entertainers: These are the clients outside the framework that cooperate with the framework. Framework: The framework is depicted by practical prerequisites that characterize an expected conduct of the item. Objectives: The reasons for the connection between the clients and the framework are illustrated as objectives.

4.Use cases catch who (entertainer) does what (cooperation) with the framework, for what reason (objective), without managing framework internals.

5. More client arranged

6. Model: ATM use case are: "get money", "get balance". The utilization cases portray what ought to occur for instance when the client enters an inappropriate username and secret word,

Utilitarian necessities:

1.Functional prerequisites catch the proposed conduct of the framework. This conduct might be communicated as administrations, undertakings or capacities the framework is required to perform.

2.The utilitarian necessities depict the framework's usefulness.

3. Utilitarian necessities approach the issue from the arrangement edge.

4. More engineer arranged.

5.Example : The framework should give access to the client after he gives username and secret key.

Connection between use cases and utilitarian prerequisites:

Use cases are the premise of the execution of the whole framework conduct. Along these lines, each utilization case ought to contain atleast one utilitarian prerequisite. What's more, each practical prerequisite ought to be designated to atleast one use case.Thus, the total use case model of a System covers every single useful necessity. Bi-directional discernibility between use case model and useful necessities is fundamental.