71 CHAPTER 3 SYSTEMS DOCUMENTATION TECHNIQUES Susan reviews the documents to ensure that they are valid payables and signs the checks. She forwards the check to the vendor and retums 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. 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. 3.7 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. REQUIRED a. Develop a context diagram and a Level 0 DFD for the cash receipts system at S&s. b. Prepare a document flowchart for the cash receipts system at S&S. c. Prepare a business process diagram for the cash receipts system at S&S, 3.8 A mai-order skin and body care company advertises in magazines. Magazine sub- scribers initiate most orders by completing and sending coupons directly to the company. The firm also takes orders by phone, answers inquiries about products and handles payments and cancellations of orders. Products that have been ordered are sent either directly to the customer or to the company's regional offices that handle the required distribution. The mail-order company has three basic data files, which contain customer mailing information, product inventory information, and billing information based on invoice number. During the next few years, the com- pany expects to become a multimillion-dollar operation. Recognizing the need to computerize much of the mail-order business, the company has begun the process by calling you