Designing an Airline Management System

Requirements

1. The airline management system should allow users to search for flights based on source, destination, and date.
2. Users should be able to book flights, select seats, and make payments.
3. The system should manage flight schedules, aircraft assignments, and crew assignments.
4. The system should handle passenger information, including personal details and baggage information.
5. The system should support different types of users, such as passengers, airline staff, and administrators.
6. The system should be able to handle cancellations, refunds, and flight changes.
7. The system should ensure data consistency and handle concurrent access to shared resources.
8. The system should be scalable and extensible to accommodate future enhancements and new features.

UML Class Diagram

Implementations

Java Implementation

Python Implementation

C++ Implementation

C# Implementation

Go Implementation

Classes, Interfaces and Enumerations

1. The Flight class represents a flight in the airline management system, with properties such as flight number, source, destination, departure time, arrival time, and available seats.
2. The Aircraft class represents an aircraft, with properties like tail number, model, and total seats.
3. The Passenger class represents a passenger, with properties such as ID, name, email, and phone number.
4. The Booking class represents a booking made by a passenger for a specific flight and seat, with properties such as booking number, flight, passenger, seat, price, and booking status.
5. The Seat class represents a seat on a flight, with properties like seat number, seat type, and seat status.
6. The Payment class represents a payment made for a booking, with properties such as payment ID, payment method, amount, and payment status.
7. The FlightSearch class provides functionality to search for flights based on source, destination, and date.
8. The BookingManager class manages the creation and cancellation of bookings. It follows the Singleton pattern to ensure a single instance of the booking manager.
9. The PaymentProcessor class handles the processing of payments. It follows the Singleton pattern to ensure a single instance of the payment processor.
10. The AirlineManagementSystem class serves as the main entry point of the system, combining all the components and providing methods for flight management, booking, payment processing, and other operations.