Given the use case from the previous homework assignment for withdrawing money from a bank account using an ATM … Withdrawals will be in cash in $20 increments up to a maximum of $300. You should consider withdrawing from either a checking or savings account. Use your knowledge of account cards, PINs, and the like to inform your implementation of the use case. Treat the backend bank repository (with info on accounts, etc.) as part of the system being designed rather than an external actor. 

a) Create a domain model for withdrawing money from the ATM.

 b) Create a system sequence diagram for withdrawing money from the ATM.