These are the purchasing procedures of the star corporation. First, when an employee makes purchases, he writes a purchase requisition form and sends it to the supervisor. Next, the supervisor reviews and approves the purchase requisition. Then, he sends it to the purchasing officer. After that, the purchasing officer examines the purchase requisition and prints the purchase order. Next, he sends the purchase order to the supplier by mail or fax. Then, the supplier receives the purchase order, he delivers the goods to the receiving clerk in the purchasing department. After that, the receiving clerk receives the goods and delivers the goods to the employee. The employee receives the goods and signs the form.