You are provided with the following information about a bank system. A bank system contains data on customers (identified by name and address) and their accounts.
There are three type of accounts and each account has a balance and unique account number. The type of accounts is:
• Checking: this account is used for daily operations i. e. you can perform credit and debit transactions to deposit or withdraw an amount from the account. Bank charges transaction fee on each debit transaction.
• Savings which offers an interest rate. Bank pays an interest on lowest monthly balance and charges a transaction fee on each debit transaction. The money cannot be deposited or withdrawn from this account. It can only be transferred to/from checking account.
• Investments: this account is used to buy stocks. Stocks are bought at a certain quantity for a certain price (ticker) and bank applies commission on stock orders. The money cannot be deposited or withdrawn from this account. It can only be transferred to/from checking account.
Requirement:
• Identify possible classes to model the solution. (1 point)
• Identify possible relationships between those classes based upon the provided description. Also model the needed multiplicity. (2 points)
• Model possible attributes for each class based upon the given description. (1 point)
• Model possible operations for each class based upon the given description. (1 point)