Question 1 The ATM system enables customers to perform various transactions such as withdrawing cash, depositing funds, transferring money, checking balances, and changing PINs, with all actions requiring user authentication. Different types of customers, such as Standard Customers and Premium Customers, can access varying levels of transaction limits and features. Customers can also opt to view transaction history and print receipts. The ATM Technician is responsible for ATM maintenance, which comprises tasks such as diagnostics, replenishing and upgrades. The Bank oversees all transactions and maintenance operations, ensuring secure and efficient service delivery. i. Draw a use case diagram to show all the functionality of the system [12 marks] ii. Distinguish between Structural and behavioral diagrams giving two examples of each iii. Discuss the three major components of the cuse diagrams [ 6 marks]

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### i. Use Case Diagram The ATM system includes actors like Standard and Premium Customers, ATM Technicians, and the Bank. Use cases include withdrawing cash, depositing funds, transferring money, checking balances, changing PINs, viewing transaction history, printing receipts, and maintenance tasks like diagnostics, replenishing cash, and upgrading the ATM. ### ii. Distinction between Structural and Behavioral Diagrams Structural diagrams, like class and component diagrams, show the static organization of a system. Behavioral diagrams, like use case and sequence diagrams, depict the dynamic behavior and interactions. ### iii. Three Major Components of Use Case Diagrams 1. Actors: External entities interacting with the system. 2. Use Cases: Descriptions of system functionalities. 3. Relationships: Connections between actors and use cases.

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