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Class Diagram for the Amazon Online Shopping System

Class Diagram for the Amazon Online Shopping System

Learn to create a class diagram for Amazon using the bottom-up approach.

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In this lesson, we’ll identify and design the classes, abstract classes, and interfaces based on the requirements we previously gathered from the interviewer in our Amazon shopping system.

Components of Amazon

As mentioned, we should design the Amazon online shopping system using a bottom-up approach.

Customer

The Customer abstract class refers to a user searching for a product on Amazon.

A customer can be one of the following:

  1. Authenticated users

  2. Guest users

The details of these are given below:

  • The AuthenticatedUser class refers to an individual with a registered Amazon account.

  • The Guest class refers to an individual without an account who can only search for and view the products on the Amazon website. However, they need to register for an account on Amazon to place an order.

The class diagram of all these is provided below:

The class diagram of the Customer class and its child classes
The class diagram of the Customer class and its child classes

Admin

The Admin class refers to an individual with a registered account on Amazon who can add, modify, or delete product categories and block users.

The class diagram of the Admin class
The class diagram of the Admin class

Account

The Account class accesses and showcases the personal details of the authenticated user and the admin, the two types of registered accounts available in the system. Users with an account can add and delete products and product reviews.

The class diagram of the Account class
The class diagram of the Account class

Product

The Product class contains the details of a particular product on the Amazon shopping store. Each product falls under a specific category on Amazon and can have none, one, or more reviews.

The class diagram of the Product class
The class diagram of the Product class

Product category

The ProductCategory class contains the names and descriptions of Amazon’s various product categories and a reference to the list of products in each ...

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