August 2000
SD206 : SYSTEMS DESIGN

QUESTION 4

Total Marks: 15 Marks

• Question 1
• Question 2
• Question 3
• Question 5
• Cover Page

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SUGGESTED SOLUTIONS
for Question 4

(a) Define the following terms and, in each case, provide a suitable example to
illustrate your answer. [6]
(i) Master file.
(ii) Reference file.
(iii) Security file.

(b) Define the term audit trail. [2]

(c) (i) Describe two types of file control. [4]
(ii) In the context of file controls, what do the terms rollback and bringing
forward the files mean? [3]