• Admins should be able to create new tellers to perform transactions
• Tellers should be able to create new accounts for customers
• Tellers should be able to aid customers in debiting or crediting their account
• Admins should be able to see all records of transactions and the total amount in the vault at any time
• customers should be able to see the current amount in their account and records of all their transactions

User class data :
               - firstName
               - lastName
               - age
               - phoneNumber
               - address

Teller class data (inherit user data ):

Acount class data:
               - type {saving / current}
               - balance

        methods :
                -doCrediting { credits account and returns message }
                -doDebiting { debits account and returns message }

Customer class data(inherit user data ):
                - accounts { hash of all customer account types as keys and the actual account as the key }

Transaction class data :
                -type { debit / credit && on what account}
                -teller { teller performing transaction }
                -customer { customer performing transaction }
                -amount
        methods :
                -genrateMessage { credits account and returns message }

Vault class data :
                -branch
                -totalFunds
                -records { keeps all transaction of type Transactions }
        methods :
                -addFunds { after any credit transaction }
                -subFunds { after debit transacrion }