![]() ![]() Sometimes, the customer wants something special (e.g., birthday cake). The remaining money is collected when the picnic is delivered. The customer is then faxed a copy of the contract and must sign and return it along with a deposit (often by credit card or check) before the picnic is officially booked. If the customer decides to book a picnic, the receptionist records the customer information (e.g., name, address, phone number, etc.) and the information about the picnic (e.g., place, date, time, which one of the standard menus, total price) on a contract. When potential customers call, the receptionist describes the menus to them. The business has grown rapidly over the past year, and the owner wants to install a new computer system for managing the ordering and buying process. ![]() During a typical summer weekend, PRU caters 15 picnics with 20 to 50 people each. Draw a level 0 data flow diagram (DFD) for the Picnics R Us system in Exercise H, Chapter 4.Ĭreate a set of use cases for the following system: Picnics R Us (PRU) is a small catering firm with five employees.
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