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E-commerce order system class diagram

E-commerce order system class diagram

2026-04-30 0 Report
This template is suitable for class diagram design in e-commerce order systems. It uses a class diagram structure to display the core classes in the system and their relationships (such as orders, users, products, payments, etc.), helping to clearly organize the object structure and business logic relationships. In ProcessOn, you can use the AI ​​function to select the corresponding scenario and enter keywords to generate a similar diagram with one click, and it supports flexible adjustments and optimizations.
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+Long userId
Order
+String phone
+String description
+isAvailable()
1
0..*
owns
+List~order~ items
associates with
+String username
+Date createTime
+String productName
Product
+createOrder()
+String address
+Long productId
+BigDecimal totalAmount
+Integer stock
+getDetail()
-BigDecimal price
+BigDecimal subtotal
+String status
OrderItem
+Long orderId
+calculateTotal()
1..*
contains
User
+Long orderItemId
+Integer quantity
+updateProfile()
+calculateSubtotal()
+login(password)
+updateStatus(newStatus)
+getOrderItems()
+getUserInfo()
+BigDecimal unitPrice
+updateStock(quantity)
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