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14 marksSystems Analysis and Design

CAPE Computer Science Unit 2 · 2009 · Paper 2 · Question 3(b)

A scenario describing a patient visiting a doctor, diagnosis, patient file updates, prescription, accounting billing, and bill generation.

Draw a Level-0 data flow diagram (DFD) for the described doctor visit scenario.

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Other parts of this question

  1. 3(a)(i)Briefly explain what is involved in the evolutionary development of software.[3 marks]
  2. 3(a)(ii)State TWO problems associated with using the evolutionary development approach.[2 marks]
  3. 3(c)(i)Describe TWO ways in which a CASE tool can be used during the software development process.[4 marks]
  4. 3(c)(ii)State ONE advantage and ONE disadvantage of using a CASE tool.[2 marks]

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