In Java

CheckingBankAccount- A checking bank account has value, a person can withdraw, deposit money to the account Address - This is a simple class which has all String fields to represent an address (ex. Address line 1, Iine2, City, State, Zip) Person - A person has a first and last name, address and has a CheckingBankAccount Bank - Bank is "associated" with the checking account. Bank has a String name and address. You do not need to have a CheckingBankAccount object within this class. However it is up to you to design/model this representation