Functional requirements of Food Delivery System with non-functional

Functional Requirements

1. User Authentication and Authorization
   • Allow users (e.g., customers, restaurant staff, delivery personnel, administrators) to create accounts, log in, and manage their profiles.
   • Implement role-based access control to manage access and permissions based on user roles (e.g., admin, restaurant owner, delivery driver).
2. Restaurant Management
   • Enable restaurants to create and manage their profiles, including business details, operating hours, and contact information.
   • Allow restaurants to manage their menu, including adding, updating, and deleting items, setting prices, and managing specials.
3. Menu and Item Management
   • Provide customers with access to restaurant menus, including detailed descriptions, images, and prices for each item.
   • Allow for filtering and sorting menu items based on categories, popularity, and dietary preferences.
4. Order Placement
   • Enable customers to place orders online, including selecting items, specifying quantities, and customizing orders (e.g., add-ons, special instructions).
   • Support order scheduling for immediate or future delivery/pickup.
5. Order Management
   • Allow restaurant staff to view and manage incoming orders, including accepting, preparing, and tracking order status.
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   • Provide tools for updating order status (e.g., in preparation, ready for delivery) and handling order modifications or cancellations.
6. Delivery Management
   • Facilitate assignment of delivery tasks to delivery personnel based on location, availability, and order priority.
   • Provide tools for tracking delivery progress, updating delivery status, and managing delivery routes.
7. Payment Processing
   • Support various payment methods, including credit/debit cards, digital wallets, and cash on delivery.
   • Handle payment processing securely and provide tools for managing transactions, refunds, and receipts.
8. Customer Support
   • Allow customers to contact support for assistance with orders, complaints, and inquiries.
   • Provide tools for managing and resolving customer support requests and feedback.
9. Notifications and Alerts
   • Send notifications to customers and restaurant staff about order status, delivery updates, and promotions via SMS, email, or push notifications.
   • Provide alert features for critical updates such as order delays or system issues.
10. Reviews and Ratings
    • Enable customers to leave reviews and ratings for restaurants and delivery personnel.
    • Provide tools for managing and responding to feedback, and for displaying aggregate ratings and reviews.
11. Analytics and Reporting
    • Generate reports on order metrics, sales performance, customer demographics, and delivery efficiency.
    • Provide analytics on trends, user behavior, and system performance for administrators and restaurant managers.
12. User Interface and Experience
    • Provide an intuitive and user-friendly interface for browsing menus, placing orders, managing deliveries, and handling payments.
    • Ensure accessibility features for users with different needs and abilities.
13. Integration with External Systems
    • Integrate with external systems such as payment gateways, GPS services for delivery tracking, and third-party applications.
    • Support API integration for extending system capabilities and connecting with external services.

Non-Functional Requirements

1. Performance
   • Ensure quick response times for browsing menus, placing orders, and processing payments.
   • Handle high volumes of concurrent users and transactions efficiently, especially during peak times.
2. Scalability
   • Support the addition of new features, restaurants, and delivery personnel as the system grows.
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   • Scale to accommodate increasing data volumes, user traffic, and order processing requirements.
3. Reliability
   • Ensure high system availability with minimal downtime.
   • Implement backup and recovery procedures to protect data and ensure business continuity.
4. Security
   • Protect user data, including personal information and payment details, with encryption and secure access controls.
   • Implement measures to prevent unauthorized access, data breaches, and fraud.
5. Usability
   • Provide an intuitive and user-friendly interface for customers, restaurant staff, and delivery personnel.
   • Ensure ease of navigation and accessibility features for users with different needs and abilities.
6. Maintainability
   • Design the system for easy updates, maintenance, and troubleshooting.
   • Provide clear documentation for system administrators, developers, and support personnel.
7. Compatibility
   • Ensure compatibility with various devices (e.g., desktops, tablets, smartphones) and web browsers.
   • Support integration with different operating systems and platforms for a seamless user experience.
8. Data Integrity
   • Ensure accuracy and consistency of order details, payment transactions, and user profiles.
   • Implement validation checks and error-handling mechanisms to maintain data quality.
9. Support and Documentation
   • Provide user manuals, help guides, and support resources for troubleshooting and training.
   • Offer technical support for system issues and maintenance.
10. Auditability
    • Maintain logs of system activity, order management, and payment transactions for auditing purposes.
    • Provide audit trails for user actions, order processing, and financial transactions.