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Magic ATM simulator

Business Case

The IT Imaginary Bank has approached us to design and implement an ATM System for them. Based on their requirements, we have decided to develop a new system named Magic ATM.

We will be incrementally adding more functionality by delivering small releases. In order to easily add more functionality in the future as well as maintain a high level of quality, Magic ATM will be built using a test driven approach. The requirements are given below.

User Stories

  1. First Release

    • Welcome Message - As a customer, I would like to see a welcome message when I start the application, so that I feel welcome and know that Magic ATM is available.

    • Main Menu - As a customer, instead of automatically seeing the options, I would like to see a list of options and be able to choose one. The list is:

      • Check balance
      • Withdraw money
      • Deposit money
      • Quit

    • Withdraw Money - As a customer, I would like to be able to withdraw money from an account.

    • Successful Withdrawal - As a customer, I would like to know that my withdrawal was successful “Thank you! Your withdrawal was completed.”.

    • Check Balance - As a customer, I would like to be able to check the balance from an account.

    • Quit - As a customer, I would like to continue choosing options until I choose to 'Quit'.

  2. Second Release

    • Unsuccessful Withdrawal - As a customer, I would like to be notified if the money I tried to withdraw was not available by seeing the message, “You can not withdraw amount $amount”, so that I know that I need to select a different amount.

    • Deposit Money - As a customer, I would like to be able to deposit money to an account.

    • Invalid Menu Option - As a customer, I would like to be notified when I choose an invalid option with the message “Select a valid option!”, so that I can know when I need to re-enter my choice.

  3. Third Release

    • Choose bills when withrdrawing - As a customer I would like to choose exactly what notes I want to withdraw based on the ATM availability.

Tech requirements

All the code must be developed using TDD and Pair Programming. Magic ATM needs to be a console application. We do not need a database for these releases.