A pharmaceutical company advertises in magazines. Subscribers to magazine initiate most orders by completing coupons directly to the company. The firm also takes orders by telephone, answers inquiries about products, and handles payments and cancellations of orders. Products that have been ordered are sent either directly to the customer or to the companys regional offices that handle the required distribution. The company has three basic data files, which contain customer mailing information, product inventory information, and billing information based on invoice number. During the next few years, the company expects to become a multimillion-dollar operation. Recognizing the need to computerize much of the mail-order business, the company has begun the process by calling you. 1. Draw a context diagram 2. Prepare the table of entities and activities 3. Draw a detailed Data Flow Diagram ( Level 0 DFD) 4. Discuss the difference between batch and online processing . For the below scenarios identify which data processing method would be appropriate and why? c. Prepare biweekly payroll checks d. Process an order through an e-commerce Web site e. Prepare a daily bank deposit f. Preparation of customer bills by a local utility