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Consider an appointment system at a medical clinic, where a patient can request to make an appointment to see a certain doctor at a specific time. Additionally, a doctor can use that system to record the timings where he would be available to see his patients. A receptionist can print schedule information for a specific day at that clinic. In one use scenario, a patient will make a request with the receptionist regarding an appointment with the doctor. The receptionist will look up the patient to see if the patient has any bills to be paid. The receptionist will then ask the patient whether he or she wants to set up a new appointment, cancel an existing appointment, or to change an existing appointment. If the patient wants to create a new appointment, the receptionist asks the patient for some suggested appointment times, which the receptionist matches against potential times available. The receptionist finally creates a new appointment. In another scenario, a patient simply wants to cancel an appointment. In this case, the receptionist looks up the patient and checks to see if the patient has any bills to be paid. The receptionist then asks the patient for the time of the appointment to be canceled. Finally, the receptionist cancels the appointment. Document Preview:

Scenario: Consider an appointment system at a medical clinic, where a patient can request to make an appointment to see a certain doctor at a specific time.  Additionally, a doctor can use that system to record the timings where he would be available to see his patients.  A receptionist can print schedule information for a specific day at that clinic. In one use scenario, a patient will make a request with the receptionist regarding an appointment with the doctor.  The receptionist will look up the patient to see if the patient has any bills to be paid.  The receptionist will then ask the patient whether he or she wants to set up a new appointment, cancel an existing appointment, or to change an existing appointment.  If the patient wants to create a new appointment, the receptionist asks the patient for some suggested appointment times, which the receptionist matches against potential times available.  The receptionist finally creates a new appointment. In another scenario, a patient simply wants to cancel an appointment.  In this case, the receptionist looks up the patient and checks to see if the patient has any bills to be paid.  The receptionist then asks the patient for the time of the appointment to be canceled.  Finally, the receptionist cancels the appointment. Using these scenarios, complete the following steps: Step 1: Create a use case diagram Step 2: Develop a number of scenarios (at least 5), for the following user scenarios: Existing Patient Makes New Appointment (see scenario details above) Existing Patient Cancels Appointment (see scenario details above) Step 3:  Interface Structure Design The interface structure defines the basic components of the interface and how they work together to provide functionality to users. A WND (Window Navigation Diagram) is used to show how all the screens, forms, and reports used by the system are related and how the user moves from one to another. In a WND, each state in which the user interface may be is…

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