2. Prepare a context level and level 0 data flow diagram for Bloomington Boutique. Consider everyone outside of the boutique to be external agents.

Narrative for data flow diagram

The mail clerk at Bloomington Boutique processes payments on account from customers by mail. The clerk opens the customers envelope and separates the check from the remittance advise. Using the remittance advise, the clerk keys in the customers account number and payment amount into a computer. The computer updates the Accounts Receivable file and the Customer Sales Subsidiary file.

At the end of the day, the cashier in the back office adds up the check amounts and reconciles them with the remittance advice. Every Friday the cashier prepares a deposit slip and forwards the checks and slip to the bank for deposit. The cashier then sends the remittance advice to the company accountant.