Functional requirements of Flight Reservation System with non-functional

Functional Requirements

1. User Authentication and Authorization
   • Allow users to create accounts, log in, and manage their profiles.
   • Differentiate access levels for customers, travel agents, and administrative staff.
2. Flight Search and Booking
   • Provide functionality for searching flights based on various criteria (e.g., departure and arrival cities, dates, class of service).
   • Display available flights, including details such as flight number, departure and arrival times, duration, and fare.
   • Allow users to book flights, select seats, and specify any special requests (e.g., meal preferences).
3. Reservation Management
   • Manage flight reservations, including booking confirmation, modification, and cancellation.
   • Send confirmation emails or notifications to users after booking or making changes.
4. Payment Processing
   • Support multiple payment methods (e.g., credit/debit cards, online payment gateways).
   • Handle payment processing securely and generate receipts and invoices.
5. Ticket Issuance and Management
   • Issue electronic tickets (e-tickets) upon successful booking and payment.
   • Allow users to view and download their tickets and itineraries.
   • Manage ticket modifications, reissues, and cancellations.
6. Flight Scheduling and Availability
   • Display flight schedules and real-time availability of seats.
   • Update flight status to reflect delays, cancellations, or other changes.
7. Customer Profile Management
   • Maintain user profiles with personal details, booking history, and preferences.
   • Allow users to update their information and manage their bookings.
8. Check-in and Boarding Pass
   • Facilitate online check-in for flights.
   • Issue and manage electronic boarding passes.
9. Notifications and Alerts
   • Send notifications for booking confirmations, flight status updates, check-in reminders, and other important information.
   • Provide alerts for flight delays, cancellations, or changes.
10. Reporting and Analytics
    • Generate reports on booking statistics, flight occupancy, revenue, and other performance metrics.
    • Provide analytics to support business decisions and operational efficiency.
11. Integration with External Systems
    • Integrate with airline databases and global distribution systems (GDS) for real-time flight data.
    • Connect with payment gateways, email systems, and other third-party services.
12. Customer Support
    • Provide customer support features, such as ticketing for support requests, live chat, and contact information.
    • Track and manage customer service interactions and resolutions.

Non-Functional Requirements

1. Performance
   • Ensure quick response times for flight searches, booking, and payment processing.
   • Handle high volumes of concurrent users and transactions efficiently.
2. Scalability
   • Support the addition of new airlines, routes, and flights as the system grows.
   • Scale to accommodate increased user traffic and data.
3. Reliability
   • Ensure high availability and minimal downtime of the system.
   • Implement backup and recovery procedures to protect data and ensure continuity.
4. Security
   • Protect sensitive user and payment data with encryption and secure access controls.
   • Ensure compliance with data protection regulations (e.g., GDPR, PCI-DSS).
5. Usability
   • Provide an intuitive and user-friendly interface for customers and staff.
   • Ensure ease of navigation and accessibility features.
6. Maintainability
   • Design the system for easy updates, maintenance, and troubleshooting.
   • Provide clear documentation for system administrators and developers.
7. Compatibility
   • Ensure compatibility with various devices (e.g., desktops, tablets, smartphones) and operating systems.
   • Integrate seamlessly with other systems as needed.
8. Data Integrity
   • Ensure the accuracy and consistency of flight, reservation, and payment data across the system.
   • Implement validation checks and error-handling mechanisms.
9. Support and Documentation
   • Provide user manuals, help guides, and support resources for troubleshooting.
   • Offer technical support for system issues and maintenance.
10. Auditability
    • Maintain logs of user actions, system changes, and transactions for auditing purposes.
    • Provide audit trails for bookings, payments, and system modifications.