Draw a level 0 data flow diagram (DFD) for the accompanying dentist office system. When new patients are seen for the first time, they complete a patient information form that asks for their name, address, phone number, and brief medical history, 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 far in advance, the receptionist usually mails a reminder postcard to each patient 2 weeks before the appointment.
You can use any tool to draw the diagram. Copy and paste the diagram in the Word document
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Criteria
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Points
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External Entities
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1
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Processes
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2
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Data Flows
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2
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Data Store
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2
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Notations and Symbols
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1
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Logical Sequence
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2
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Total
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10
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