Draw the interaction diagram for the following contract:

If a collaboration diagram is used, be sure that all messages' sequence numbers are shown.

Contract: Transfer Amount Between Two Accounts

Operation: transfer (amount, AcN01, AcN02)

Responsibilities: Transfer an amount from a given account to anther

Cross References: Use Case: Bank Transactions

Preconditions: All accounts are accessible through :Bank object that is already exist and has access to all :Account objects. :Atm is also available as a controller object.

Postconditions:

The two Accounts were found through a Bank object.

The amount was debited from Account 1 if enough fund is available.

The second Account was credited.