Examples of business rules for an online shopping system

Examples of business rules for an online shopping system:

1. Registration Validation Rule:

   • Description: User registration must include a valid email address, a unique username, and a secure password.

2. Price Calculation Rule:

   • Description: The total price of an order is the sum of the prices of individual items plus any applicable taxes and shipping fees.

3. Inventory Check Rule:

   • Description: Before completing an order, check if the selected items are available in the inventory.

4. Cancellation Period Rule:

   • Description: Users can only cancel an order within 24 hours of placing it.

5. Discount Code Validity Rule:

   • Description: Discount codes are valid only if they are not expired and meet specific criteria defined by the business.

6. Minimum Order Quantity Rule:

   • Description: Some products may have a minimum order quantity requirement that users must meet.

7. Password Strength Rule:

   • Description: User passwords must meet certain criteria for strength, such as a minimum length and a mix of characters.

8. Shipping Address Completeness Rule:

   • Description: A shipping address must include all necessary details, such as street address, city, and postal code.

9. Order Status Transition Rule:

   • Description: Orders can only transition from "Pending" to "Confirmed" if payment is successfully processed.

10. User Authentication Rule:

    • Description: Only authenticated users can access certain functionalities, such as placing an order or viewing order history.

These business rules help define and enforce the specific conditions and behaviors that govern the operations and interactions within an online shopping system. They ensure consistency, accuracy, and compliance with the business requirements.