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ssd3 项目代码 蓝天航空预定系统 Blue Skies Airline Reservation
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上传时间: 2010-01-22
详细说明： Blue Skies Airline Reservation System Background Blue Skies Airline, a new airline, offers services between any two of the following U.S. cities: Denver; Washington, D.C.; Los Angeles; New York City; Atlanta; and Cleveland. When a customer calls Blue Skies to make a flight reservation, the reservation agent first asks him or her for • The desired travel dates • The departure and destination cities • The seat grade desired (first class, business class, or economy) The reservation agent then informs the customer of all available f lights that meet his or her criteria. For each flight, the flight number, departure date and time, arrival date and time, and round-trip price are communicated to the customer. If the customer finds any of the available flights acceptable, he or she may either pay for the ticket via credit card or request that the seat be held for 24 hours. (A specific seat assignment—row and seat number—isn’t issued until the seat is paid for.) APPENDIX B ■ ALTERNATIVE CASE STUDIES 847 848 APPENDIX B ■ ALTERNATIVE CASE STUDIES A limited number of seats on each flight are earmarked as frequent flyer seats. A customer who is a frequent flyer member may reserve and “pay for” one of these seats by giving the agent his or her frequent flyer membership number. The agent then verifies that the appropriate balance is available in the customer’s account before the seat can be confirmed, at which point those miles are deducted from the account. The customer has two ticketing options: he or she may request that a conventional “paper” ticket be issued and mailed to his or her home address, or an electronic ticket (e-ticket) may instead be assigned, in which case the customer is simply informed of the e-ticket serial number by telephone. (With an e-ticket, the customer simply reports to the airport at the time of his or her departure, and presents suitable ID to a ticket agent at the gate. No paperwork is exchanged.) In both cases, the reservation agent records the serial number of the (conventional or electronic) ticket issued to this customer. The number of seats available for a given flight in each of the seat ...展开收缩
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