Using C#$,$ Background: An online retail store wants to develop a new software system to handle its

operations. This system will manage products, orders, customers, and inventory. The system

must support different types of products, including electronics, clothing, and groceries.

Requirements:

$1.$ The system should have different product categories, each with specific attributes. For

example, electronics have a warranty period, clothing has sizes and materials, and

groceries have an expiration date.

$2.$ Customers can place orders for multiple products. Each order should track the order

date, delivery date, and status.

$3.$ The system should handle inventory management, including updating stock levels

when orders are placed and returned.

$4.$ Implement a simplified version of the system focusing on class structures, inheritance,

and method overloading.

Tasks:

$1.$ Design and implement the classes for the online retail store, including Product,

Electronic, Clothing, Grocery, Customer, Order, and Inventory. Utilize inheritance and

method overloading where appropriate.

$2.$ Implement a method in the Order class to calculate the total cost of an order,

considering any discounts for bulk purchases.

Questions:

$1.$ Class Design and Method Overloading:

o Implement the class hierarchy for the online retail store. Ensure that the

Product class is abstract and that Electronic, Clothing, and Grocery classes

inherit from it$.$ Each class should have appropriate properties and methods.

$2.3.$ o Write overloaded constructors for the Order class to support creating an order

with different initial parameters $($e$.$g$.,$ with a list of products or with product

IDs and quantities$).$

Inventory Management and Order Processing:

o Implement a method in the Inventory class to update stock levels when an

Order is placed. Demonstrate this functionality with a sample implementation.

o Write a method in the Order class to process returns and update the inventory

accordingly. Ensure that the method handles different types of products

correctly $($e$.$g$.,$ checking expiration dates for groceries$).$

Software Development Approach and Life Cycle:

o Explain the software development approach and life cycle model adopted for

the Online Retail Store system.

o Describe the requirements gathering process and techniques used.

o Justify the choice of the development approach and its benefits for the project.