Prepare a table of entities and logical DFD for the Erickson Inc.

Erickson, Inc. sells pluming supplies to contractors in the northeast region of the United states. Each month, the IT division at Erickson prints monthly statements and sends them to the accounts receivable department where a clerk mails them to the customers. Erickson's customers mail their payments back to Erickson where a clerk in Accounts receivable batches the checks and sends them to the cashier. The AR clerk them uses the payment stub to enter the payments into the computer where the AR master data is updated to record the payment.