Class Diagram for the Movie Ticket Booking System

In this lesson, we will identify and design the Movie Ticket Booking system's key classes, abstract classes, and interfaces. Our approach follows the bottom-up design methodology, beginning with core entities and building up to system-wide relationships, as defined in the requirements lesson.

Components of a movie ticket booking system

We use a bottom-up approach, starting from core entities and relationships, ensuring the design aligns with functional and operational requirements.

Seat

The Seat class represents a physical seat in a cinema hall. It is an abstract class extended by three concrete seat types: Silver, Gold, and Platinum.

• Each seat type has a fixed cost (rate).

• The base Seat class defines the rate attribute and methods and may be overridden in subclasses if necessary.

• Each seat also has a seat number and a seat status (available, booked, or reserved).

The visual representation of these classes is as follows: