Question

Q: write all the functional and non-functional requirements as per the case below. Your requirements must be validated for conciseness, completeness, non-ambiguity, verifiability, feasibility, and traceability:

- ·the case below is about developing a textbook that exchanges which enables students to sell textbooks to other students. Students will browse the available textbooks on their Android devices and have access to the following capabilities

• Register for the system by providing their name, Student ID and email address and a password

• Log in to the system by entering their Student ID and password

• Search for textbooks (by title or ISBN number or author) and scroll through the results of their search. The results of their search should include the price and condition of the book.

• Note that more than one of the same textbook may be returned by the search due to multiple students listing the same book. In this case the user should be presented with a list of results showing the different prices and conditions.

• Purchase textbooks (by sending an email to the textbook buyer and owner indicating an intent to purchase)

• Sell textbooks

• The user will need to enter the title and ISBN number, price and condition of the book

• Remove user's posted textbooks from the system (once the student has completed a sale, or if the user decides to not sell the textbook)

• Display additional information about textbook search results, provided directly from Amazon, including an image of the textbook cover, price, authors, and the book description

Answer 1

FUNCTIONAL AND NON-FUNCTIONAL REQUIREMENTS OF A

TEXTBOOK EXCHANGE APPLICATION

While developing a mobile application we need to take a research on its functional and non-functionalrequirements inorder to check the feasibility and performance of application.

Functional requirement is defined as the ability of a software application to

perform a defined task and it’s performance metrics while executing the task.

Non-functional requirement can be defined as the requirements that lists or specifies the criteria that can be used to define/analyse the operations of a system.

Briefly, Functional requirement defines what system to do and non-functional requirement defines how the system supposed to do.

PROBLEM DEFINITION: Develop an android application which enables students to buy and sell their textbooks.

FUNCTIONAL REQUIREMENTS

In the development side;

• Create application modules backend code and GUI

1. Student registration and login module

2. Search and show textbooks module

3. Textbook profile module

4. Purchase textbook module.

• Create databse which includes

1. Student table with fields stident ID, name email and password

2. Textbook table with fields title, ISBN, author, price, condition, description.

Non dvelopment side;

• Check and validate the user credntials field at time of user registraion

• Evaluate the unique fields integrity, example student ID.

• Ensure search results shows all the texbook precisely.

• Ensure one student add not more than one copy of same textbook

• Ensure that sold books are removed from the textbook database,

• Ensure the seller got the money and ensure the integrity in buying and selling

• Ensure the condition specified by the seller is precise

NON-FUNCTIONAL REQUIREMENTS

• Identify the compatible android versions which the app supports.

• Scalability of device screen

• Performance analysis by checking the response time

• Scalability – app should handle higj user flow

• Responsiveness – app should properly response to user inputs and actions

• Security – App should encrypt the user data and the purchase information.

• Availability – Easy to install and use