Guest: All guests can search the catalog, add/remove items to the shopping cart, as well as become registered members.Admin: Mainly responsible for account management and adding or modifying new product categories.Users should be able to track their shipment to see the current state of their order.Users should be able to pay through credit cards or electronic bank transfer.Users should get notifications whenever there is a change in the order or shipping status.Users can cancel an order if it has not shipped.The user should be able to specify a shipping address where their order will be delivered.Users can rate and add a review for a product.Users can check out and buy items in the shopping cart.Users should be able to add/remove/modify product items in their shopping cart.Users can search and view all the products, but they will have to become a registered member to buy a product.Users should be able to search for products by their name or category.Users should be able to add new products to sell.We will be designing a system with the following requirements: For the sake of this problem, we will focus on their online retail business where users can sell/buy their products. The company was originally a bookseller but has expanded to sell a wide variety of consumer goods and digital media. Design Amazon - Online Shopping System Let's design an online retail store.Īmazon ( ) is the world’s largest online retailer.

Sequence diagram online shopping