This UML class diagram illustrates the structure and interactions within an ATM system, showcasing its key entities, attributes, methods, and relationships. The main classes include Customer, ATM Card, Account, Bank, ATM, Transaction, and its subtypes—Withdrawal, Deposit, and Balance Inquiry—each defining specific operations and data. Supporting hardware and software components, such as Cash Dispenser, Receipt Printer, Keypad, Screen, and Security Camera, connect with the ATM to facilitate transactions.
The class diagram also models the Bank Server for backend processing and the Maintenance Staff for system upkeep. Associations and dependencies highlight data flow, while composition and inheritance depict strong relationships and shared functionalities.
