Question

Please do a complete structured system analysis for the following system: Consider an automated teller machine (ATM). The user puts a card into a slot and enters a four-digit personal identification number (PIN). If the PIN is incorrect, the card is ejected. Oth- erwise, the user may perform the following operations on up to four different bank accounts: (1) Deposit any amount. A receipt is printed showing the date, amount deposited, and account number (ii) Withdraw up to $200 in units of $20 (the account may not be overdrawn). In addition to the money, the user is given a receipt showing the date, amount withdrawn, account number, and account balance after the withdrawal. (iii) Determine the account balance. This is displayed on the screen. (iv) Transfer funds between two accounts. Again, the account from which the funds are trans- ferred must not be overdrawn. The user is given a receipt showing the date, amount trans- ferred, and the two account numbers. (v) Quit. The card is ejected.

Answer 1

The ATM system enables authenticated users to perform various banking transactions such as deposits, withdrawals, balance inquiries, fund transfers, and exit operations. It connects with the broader financial ecosystem by providing access to checking and savings accounts, facilitating smooth financial transactions and reducing the need for cash.

Step-by-step explanation:

An automated teller machine (ATM) system allows users easy access to their money and facilitates a variety of banking transactions. The process begins with authentication, where the user inserts their card and inputs a four-digit personal identification number (PIN). If the PIN is correct, the user can perform several operations, such as making deposits, withdrawing cash up to $200 in $20 increments, checking account balances, transferring funds between accounts, and quitting the session. Receipts are printed for deposit, withdrawal, and transfer transactions, providing details such as the date, transaction amount, account number, and post-transaction account balance. Each transaction must ensure the account is not overdrawn, reflecting a key constraint of the system.

Within the broader financial system, banks offer checking and savings accounts that work seamlessly with ATMs. Savings deposits can be accessed via an ATM or transferred to a checking account for easier payment and money management. The payment system that includes ATMs and debit cards greatly reduces the need for carrying cash and allows for efficient transactions in a complex economy.