Answer Happy

CASE STUDY More than 2000 putients are registered with a local health centre. The centre employs a number of general practitioners (ie doctors) and a few receptionists Patients are officially registered with one doctor but can arrange appointments with any available one. These appointments may subsequently be cancelled. Some appointments result in one or more prescriptions, identifying a medicine to be taken New patients are registered by a receptionist. When a patient is registered, he/she provides his/her details such as name, date of birth, address, etc, and receives a unique patient number To book an appointment a patient should contact a receptionist The patient provides his/her number (or date of birth) and the receptionist provides a list of available time slots for appointments. The appointment is booked with the patient's doctor or if the patient's doctor is not available with any available doctor. The date and time of the booked appointment are given to the patient as a confirmation Patients can cancel booked appointments by contacting a receptionist who will cancel appointments on behalf of patients. A patient who attends an appointment should check in first using a special terminal located in the waiting area of the health centre. The patient inputs huis/her number or date of birth) The system checks the details and confirms that the patient has been checked in Doctors record appointment outcomes and details of prescriptions (if any) during the appointments i.e. all prescriptions issued by doctors are recorded on the patient's record. Patients who leave the area where the health centre is located are de-registered by a receptionist 1. Produce a context diagram of the health centre system as described above. 2 Produce a logical top level data flow diagram of the health centre system 3. Explain the difference between a waterfall and an iterative/incremental System Development Life Cycle Illustrate your answer with dingrams 4. Which approach would you recommend for developing the system for a health centre similar to the one described in the case study above? Justify your recommendation 5. A company has decided to purchase off the shelf (OTS) software to handle the financial aspects of its business. List at least 10 criteria that should be used to decide whether various software applications are suitable for the company. (Flint - You do not need to list detailed functional/non-functional requirements) 6. If no OTS software can be found that exactly matches the required criteria, what other options does the company have to obtain suitable software?