ch8_dfd_exercises0 - DFD Exercises A POLY U COMMUNICATIONS...

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DFD Exercises A. POLY U COMMUNICATIONS Customers come into the store with a request for finishing operations such as folding, cutting, padding, and binding of paper material. In addition, they may request photocopying, offset printing, and class notes service. Using the price list for different operations, an order form is prepared and a job number is assigned to the order. The order number is assigned by looking in the order number book, identifying the last order number used and adding one to that number. That new order number is also updated in the order number book as the last number used or assigned. One copy of the order form is given to the customer and the other two copies of the form are filed in the job- processing file. A clerk periodically checks the jobs on the job scheduling board and if there is room on a particular machine, transfers the orders from the processing file to the scheduling board. The other copy of the order is sent with the job to the finishing operation. Note, Poly U will utilize a subcontractor to supplement its operations. It’s at the clerk’s discretion whether to use the subcontractor or not. In either case, a copy of the order travels to the finishing operation whether it’s in-house or contracted. At the finishing operation, when the activity is complete, the order is initialed and sent back to the scheduling board. After the order goes through the various processing (finishing) stages, the job on the scheduling board is updated accordingly. Once the job is complete, it is transferred to the billing unit for preparing an invoice. When a customer comes to the store to pick up the job, the invoice is given to the customer. The customer pays for the job (cash or credit card). A second copy of the invoice is initialed as paid and is filed in the receipt file. 1 12/5/2011
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DFD Exercises B. PHYSICIAN’S BILLING SYSTEM Recently a group of six physicians/surgeons who are eye, ear, nose, and throat specialists joined their practices together. They hope that with six of them working together; it will be possible to cover doctor absences without disrupting a patient’s treatment. They also are attempting to achieve some economies of scale through centralization of their common functions such as billing, accounts receivable, scheduling of appointments, paying overhead for space, and paying for insurance and supplies. One area that these physicians feel needs immediate attention is their current billing process. As the physician completes a patient examination, he/she completes an examination record. This record is subsequently reviewed for accuracy and associated fees computed by a billing clerk. In order to do this process, the billing clerk refers to a fee schedule, which shows the rate at which a doctor’s services are billed. Once the exam record is verified and the fee schedule consulted, the billing clerk
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ch8_dfd_exercises0 - DFD Exercises A POLY U COMMUNICATIONS...

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