Functional Requirements

• FR-1: The system shall provide a browsable catalog view, allowing users to filter and sort books by category, new arrivals, and bestsellers.

• FR-2: The system shall support full-text and metadata search by keyword, title, author, or ISBN.

• FR-3: The system shall retrieve and display structured book metadata, including title, author, price, description, and availability status.

• FR-4: The system shall implement user account management, including account creation, authentication, and session handling.

• FR-5: The system shall provide a persistent shopping cart that supports adding, removing, and updating book quantities.

• FR-6: The system shall support a secure checkout flow with multiple payment options through an external payment provider.

• FR-7: The system shall allow users to access their order history and manage active orders.

• FR-8: The system shall provide administrative interfaces for managing catalog data and inventory levels.

• FR-9: The system shall deliver order-related notifications, including order confirmation and status updates, via email or in-app messages.

• FR-10: The system may generate personalized book recommendations to enhance user engagement.

 Non-Functional Requirements

• NFR-1: The system should provide an intuitive and accessible user interface with consistent navigation.

• NFR-2: The system should implement secure authentication, data encryption, and proper handling of sensitive information.

• NFR-3: The system should be horizontally scalable to support increased catalog size and concurrent users.

• NFR-4: The system should maintain high service availability to ensure uninterrupted access to core functionality.

• NFR-5: The system should deliver low-latency responses to provide a smooth user experience during search, checkout, and account actions.