This UML class diagram models an online food ordering system, showing entities and their relationships. Customers can register, log in, place orders, and manage carts containing Menu Items from Restaurants. Orders may apply Discounts, require Payments, and include Deliveries. Reviews link Customers to Restaurants, enabling feedback. Notifications are sent to Customers regarding order updates.
Admins oversee Restaurants and handle support tickets for resolving issues. Each class includes attributes and methods relevant to its role, with multiplicities defining one-to-many or many-to-many relationships. The UML class diagram integrates customer interaction, order processing, restaurant management, and administrative support within a unified system flow.