Keypad
Responsibilities	Collaborators
Get Value from User

 
 

Customer
Responsibilities	Collaborators
Get Account
match customer number and PIN

 
 

Bank
Responsibilities	Collaborators
Read customer list from file
Find Customer	Customer

 
 

BankAccount
Responsibilities	Collaborators
Get current balance
Deposit funds
Withdraw funds

 
 

ATM
Responsibilities	Collaborators
Set state
Select Customer	Bank, Keypad
Select Account	Customer, BankAccount, KeyPad
Do Withdrawal	BankAccount, KeyPad
Do Deposit	BankAccount, KeyPad