E$-$bookstore Management System

Problem Statement:

The Great E$-$books Store requires a software application to enhance the customer experience and streamline internal operations. The critical requirements for the software application are as follows:

$1.$ E$-$book Management: The system should maintain a comprehensive catalog of the store's available e$-$books. Each e$-$book should have detailed information such as titles author, publication date genre, and price.

$2.$ Customer Management: The system should facilitate customer information management, including personal details like $($name and contact information$).$ Customers can browse e$-$books online, create an account, and purchase e$-$books. Upon purchase, they should receive an invoice with details of the order, e$-$book prices, and any applicable discounts or promotions.

$3.$ Shopping Cart and Orders: The system should allow customers to add e$-$books to their cart, remove items, or update quantities. Orders should reflect the number of e$-$books and order date. E$-$books are delivered instantly upon purchase completion.

$4.$ Discounts and Pricing: The system should support flexible pricing and discount options. The e$-$book store's loyalty program members receive a $10\backslash \%$ discount on all purchases, and bulk purchases $(5$ or more e$-$books in a single order$)$ receive a $\backslash (20\backslash \%\backslash )$ discount.

$5.$ Payment and Invoicing: Each order should generate an invoice detailing the itemized price, applicable discounts, and the final total. Value$-$added Taxes $($VaT$)$ at a fixed rate of $\backslash (8\backslash \%\backslash )$ are applied to all purchases.

Requirements:

$1.$ Design UML Class Diagram Design UML class diagram representing the concepts and relationships in the scenario. Ensure to use inheritance or association $($aggregation and composition$)$ relationships. You may make assumptions about attributes $($with proper access specified$)$ and concepts not explicitly mentioned in the problem statement. A clear description of the relationships, modularity, and assumptions must be included. All classes to meet the requirements must be identified $($a minimum number of required classes is six $(6)\backslash ()\_\{\backslash$text $\{,\}\}\backslash )$ and students are expected to demonstrate knowledge of different types of relationships.

$2.$ Write Python Code to Implement Your UML Class Diagram Implement the Python classes based on your UML diagram. Make sure to:

$1.$ Group the classes into different files for good modularity.

$2.$ Use docstring, private$/$protected attributes, getter and setter methods $\backslash (\{\}\_\{$r$\}\backslash )$ and a str $()$ method for all classes.

$3.$ Include comments and documentation to ensure good readability.

$4.$ The submitted code must be error$-$free and have well$-$formatted output. Each student's work will be unique in terms of the code and output.

$3.$ Define Test Cases Write test cases in a separate file to demonstrate all the program's features. Ensure to test all features. Some examples of test cases are $($not limited to$)$:

$1.$ Add$/$Modify$/$Remove a new e$-$book to the e$-$bookstore's catalog.

$2.$ Add$/$Modify$/$Remove customer account.

$3.$ The addition of e$-$books to the shopping cart.

$4.$ Applying discounts for loyalty program members or bulk purchases.

$5.$ The generation of an invoice showing relevant discounts and required payments.

Submission Details:

$1.$ Submit $**$a report $**($single PDF file$)$ that has the following sections:

$1.$ UML Class Diagram and Description

$2.$ Python classes $($copy$-$paste the code, NOT an image of the code$).$ The code must be well documented and follow good coding standards.