The following narrative describes the sales order entry process at Dumas, Inc. DUMAS, INC. NARRATIVE DESCRIPTION FOR SALES ORDER ENTRY PROCESS Dumas, Inc. customers mail their orders to the Dumas customer service center where clerks open the orders and review them for accuracy. The clerks then key orders into the computer. As the clerk is entering the data, the computer displays pertinent data on the order input screen with dat from the applicable customer and inventory master data files. The computer displays the completed order and the clerk reviews the order (assume there are no discrepancies) and then accepts the order (selects the "save" icon on the input screen). The computer then creates a sales order master record, updates the inventory master data to allocate inventory to the sales order, prints a picking ticket in the warehouse, and displays the sales order number to the customer service center clerk. The clerk then reads this number to the customer. REQUIRED: (1) (2) (3) Prepare, in appropriate form, a table of entities and activities for the company's sales order entry process, based on this narrative. Prepare, in appropriate form, a context diagram for the company's sales order entry process, based on this narrative. Prepare, in appropriate form, a physical data flow diagram for the company's sales order entry process, based on this narrative.