Just need you to do exercise 3.7.

Required: Develop a context diagram and Level 0 DFD for the cash receipts systems at S&S.

file is kept for each type of purchase orders forwarded from purchasing are stored in a purchase order file. The re- ceiving reports are stored in a receiving report file. When vendor invoices are received, the accounts payable clerk records the amount due in the accounts payable file and files the invoices in the vendor invoice file. S&S pays all accounts within 10 days to take advantage of early-payment dis- counts. When it is time to pay a bill, the accounts payable clerk retrieves the vendor invoice, attaches the purchase order and the receiving report, and forwards the matched documents to Ashton Fleming. Ashton reviews the documents to ensure they are complete, prepares a two- part check, forwards all the documents to Susan, and records the check in the cash disbursements journal. Susan reviews the documents to ensure that they are valid payables and signs the checks. She forwards the check to the vendor and returns the documents and the check copy to the accounts payable clerk. The clerk files the documents alphabetically in a paid invoice file. At the end of every month, the accounts payable clerk uses the ac- counts payable ledger to prepare an accounts payable report that is forwarded to Susan. After she is finished with the report, Susan files it chronologically. 3.7 REQUIRED a. Prepare a context diagram and a Level 0 DFD to document accounts payable processing at S&S. b. Prepare a document flowchart to document accounts payable processing at S&S. c. Prepare a BPD to document accounts payable processing at S&S. Ashton Fleming has asked you to document the cash receipts system at S&S. Ashton's narrative of the system follows: Customer payments include cash received at the time of purchase and payments received in the mail. At day's end, the treasurer endorses all checks and prepares a deposit slip for the checks and the cash. A clerk deposits the checks, cash, and deposit slip at the local bank each day. When checks are received as payment for accounts due, a remittance slip is in- cluded with the payment. The Treasurer sends this to accounts receivable. Data from the remittance slips are entered into the computer, and the accounts receivable database is updated. The remittance slips are stored in a file drawer by date. Every week, accounts receivable generates a cash receipts report and an aged trial balance using the accounts receivable ledger. The cash receipts report is sent to Scott and Susan and one of them reviews it. A copy of the aged trial balance is sent to the credit and collections department, where it is reviewed