daeneris88 / bankingapp

BankingApp

Requirements:

1. The system must have 4 types of accounts: StudentChecking, Checking, Savings, and CreditCard.
2. The system must have 3 types of Users: Admins, AccountHolders and ThirdParty.
3. Admins can create new accounts. When creating a new account they can create Checking, Savings or CreditCard Accounts.
   • Savings
     • Have a default interest rate of 0.0025
     • May be instantiated with an interest rate other than the default, with a maximum interest rate of 0.5
     • Should have a default minimumBalance of 1000
     • May be instantiated with a minimum balance of less than 1000 but no lower than 100
   • CreditCards
     • Have a default creditLimit of 100
     • May be instantiated with a creditLimit higher than 100 but not higher than 100000
     • Have a default interestRate of 0.2
     • May be instantiated with an interestRate less than 0.2 but not lower than 0.1
   • CheckingAccounts
     • If the primaryOwner is less than 24, a StudentChecking account should be created otherwise a regular Checking Account should be created.
     • Should have a minimumBalance of 250 and a monthlyMaintenanceFee of 12
4. Interest and Fees should be applied appropriately.
   • PenaltyFee
     • For all accounts should be 40.
     • If any account drops below the minimumBalance, the penaltyFee should be deducted from the balance automatically
   • InterestRate
     • On savings accounts is added to the account annually at the rate of specified interestRate per year. That means that if I have 1000000 in a savings account with a 0.01 interest rate, 1% of 1 Million is added to my account after 1 year. When a savings account balance is accessed, you must determine if it has been 1 year or more since either the account was created or since interest was added to the account, and add the appropriate interest to the balance if necessary.
     • On credit cards is added to the balance monthly. If you have a 12% interest rate (0.12) then 1% interest will be added to the account monthly. When the balance of a credit card is accessed, check to determine if it has been 1 month or more since the account was created or since interest was added, and if so, add the appropriate interest to the balance.

Data Model:

Use Case:

FlowChart: