Grokking the Object Oriented Design Interview

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Design Amazon - Online Shopping System

Let's design an online retail store.

Amazon (amazon.com) is the world’s largest online retailer. The company was originally a bookseller but has expanded to sell a wide variety of consumer goods and digital media. For the sake of this problem, we will focus on their online retail business where users can sell/buy their products.

Requirements and Goals of the System

We will be designing a system with the following requirements:

  1. Users should be able to add new products to sell.
  2. Users should be able to search for products by their name or category. 3

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G

generic_user

· 4 years ago

Why do we include a sequence diagram

Show 1 reply
A

asra.naseem517

· 2 years ago

public abstract class Customer {
    private ShoppingCart cart;
    private Order order;

    public ShoppingCart getShoppingCart();

    public bool addItemToCart(Item item);

    public bool removeItemFromCart(Item item);
}

public class Guest extends Customer {
    public bool registerAccount();
}

In the requirement it is mentioned that guest should not have access to place an order , but here guest extends the functionality of Customer which has Order in it , can you explain why do we have order in Customer class?