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13 marksSystems Analysis and Design

CAPE Computer Science Unit 2 · 2015 · Paper 2 · Question 3(d)

A clinic, New Smiles, operates in Happy Ville. Patients call to book an appointment with Dr Sam. The receptionist checks the patient database by name; if the record does not exist, a new patient record (name, phone number, address, brief medical history) is created. The patient then submits a preferred date/time, the receptionist checks the appointment database for availability, and books/returns a suitable appointment. Daily, a list of upcoming appointments is generated from the appointment database so the receptionist can call patients with reminders.

Draw a Level-0 data flow diagram (DFD) to represent the flow of data described in the clinic scenario.

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Other parts of this question

  1. 3(a)Explain the rapid prototyping approach to systems development.[2 marks]
  2. 3(b)Describe the main challenge that the rapid prototyping approach seeks to overcome.[2 marks]
  3. 3(c)Explain four reasons why some systems analysts believe the entire systems development life cycle can be initiated and completed during the maintenance phase.[8 marks]

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