Develop an activity diagram based on the following narrative. Note any assumptions or questions that you have as you develop the model. The Receiving Department receives all shipments on outstanding purchase orders made by company employees. (Note these are NOT customer orders, but employee orders for items needed for internal use.) When the receiving clerk receives a shipment, he/she looks up the outstanding purchase order for those items. The clerk then sends multiple copies of the shipment packing slip which should be inside the shipment box. One copy goes to the Purchasing department so that the purchasing clerk can update the PO as fulfilled. Another copy goes to the Accounts Payable department so that payment can be issued to the vendor. A third copy goes to the requesting employee (who originally issued the purchase order) along with the goods received. The employee sends a notice to purchasing once the order is received, inspected, and accepted. After payment is made, the Accounts Payable department sends a notice to the Purchasing department. When Purchasing receives verifications from Receiving, Accounts Payable, and the employee, it closes the purchase order as fulfilled, delivered, and paid.