Draw a physical level 0 data flow diagram (DFD) for the following dentist office system, and compare it with the logical model that you created in Chapter 5: Whenever new patients are seen for the first time, they complete a patient information form that asks their name, address, phone number, and brief medical history, all of which are stored in the patient information file. When a patient calls to schedule a new appointment or change an existing appointment, the receptionist checks the appointment file for an available time. Once a good time is found for the patient, the appointment is scheduled. If the patient is a new patient, an incomplete entry is made in the patient file; the full information will be collected when the patient arrives for the appointment. Because appointments are often made so far in advance, the receptionist usually mails a reminder postcard to each patient two weeks before his or her appointment.
Answer to relevant QuestionsCreate a physical level 0 DFD for the following, and compare it with the logical model that you created in Chapter 5: A Real Estate Inc. (AREI) sells houses. People who want to sell their houses sign a contract with AREI and ...Critique the structure chart shown, which depicts a guest making a hotel reservation. Describe the chart in terms of fan-in, fan-out, coupling, and cohesion. Redraw the chart to improve thedesign.In the new system for Holiday Travel Vehicles, the system users follow a two-stage process to record complete information on all of the vehicles sold. When an RV or trailer first arrives at the company from the manufacturer, ...What is the difference between an end-user database and an enterprise database? Provide an example of each one.What are the differences between the logical and physical ERDS?
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