An ATM machine is typically found in many places. Those located at bank locations may offer more service options than those machines that just allow cash withdrawal. An ATM at a bank is generally available 24/7. Downtime is required periodically for maintenance but is limited to 1 hour per week. The system is not available for customer use during downtime. A customer with a valid ATM access card can log into the ATM machine. The login process is initiated by inserting the card and when asked, entering a PIN consisting of four numeric digits. If a wrong PIN is entered, the login is cancelled and the card ejected. At that point, the customer can try again. The ATM must provide the following services: 1.0 Verification of user account information (login) via bank card & pin 2.0 Deposit funds 3.0 Withdraw cash 4.0 Transfer funds between accounts (checking/savings) 5.0 Check account balances 6.0 Select another transaction or log out For services 2.0 - 5.0, a customer can request a printed receipt at the end of every transaction or can request transaction receipt be sent to the email address on file. Multiple transactions are allowed during a single login. Construct a two-level functional flow block diagram (FFBD) for the ATM system described above. Use the examples provided in the textbook, in the lectures, and your own experience with ATM machines to determine what should be represented in the second level FFBDs. Your ATM FFBD should contain all the required elements described in the lectures as appropriate for a second level diagram. The diagram should be generated using a software tool or program. However, you may submit a hand drawn diagram if you do not have access to a drawing program or software. Hand drawn diagrams should be clearly labeled, neatly drawn, black writing on solid white or graph paper and preferably scanned as a black & white or grayscale PDF file unless color is used.
An ATM machine is typically found in many places. Those located at bank locations may offer more service options than those machines that just allow cash withdrawal. An ATM at a bank is generally available 24/7. Downtime is required periodically for maintenance but is limited to 1 hour per week. The system is not available for customer use during downtime.
A customer with a valid ATM access card can log into the ATM machine. The login process is initiated by inserting the card and when asked, entering a PIN consisting of four numeric digits. If a wrong PIN is entered, the login is cancelled and the card ejected. At that point, the customer can try again.
The ATM must provide the following services:
1.0 Verification of user account information (login) via bank card & pin
2.0 Deposit funds
3.0 Withdraw cash
4.0 Transfer funds between accounts (checking/savings)
5.0 Check account balances
6.0 Select another transaction or log out
For services 2.0 - 5.0, a customer can request a printed receipt at the end of every transaction or can request transaction receipt be sent to the email address on file. Multiple transactions are allowed during a single login.
Construct a two-level functional flow block diagram (FFBD) for the ATM system described above. Use the examples provided in the textbook, in the lectures, and your own experience with ATM machines to determine what should be represented in the second level FFBDs. Your ATM FFBD should contain all the required elements described in the lectures as appropriate for a second level diagram.
The diagram should be generated using a software tool or program. However, you may submit a hand drawn diagram if you do not have access to a drawing program or software. Hand drawn diagrams should be clearly labeled, neatly drawn, black writing on solid white or graph paper and preferably scanned as a black & white or grayscale PDF file unless color is used.
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