CASE A: AAA Electrical, Inc. (Cash Receipts Process) AAA Electrical, Inc. sells electrical parts to electrical contractors in the southeastern United States. AAA Electrical customers mail their paymentsattached to the stub (i.e., remittance advice [RA]) from their monthly statementto AAA Electrical accounts receivable (AR) office. An AR clerk confirms that the check amount agrees with the amount on the RA and sends the checks to the cashier. The AR clerk prepares batch totals of the customer numbers, invoice numbers, and amount paid. The AR clerk then enters the batch totals and RAs into the computer, where the AR master data are updated to record the payment. The computer reconciles the batch totals, confirms job completion, and reports discrepancies, if any, to the AR clerk.

Requirements:

a. Prepare a table of entities and activities.

b. Draw a context diagram.

c. Draw a physical data flow diagram (DFD).

d. Prepare an annotated table of entities and activities. Indicate on this table the groupings, bubble numbers, and bubble titles to be used in preparing a level 0 logical DFD. e. Draw a level 0 logical DFD.