August 1997
SD206: SYSTEMS DESIGN

QUESTION 1 (Compulsory)

Total Marks: 20 Marks

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SUGGESTED SOLUTIONS
for Question 1

1. (a) List two criteria that should be considered when selecting an output method. [2]
(b) List two structured tools used in system or program design. [2]
(c) List four forms of control. [4]
(d) How may we differentiate between a toolbar and index help? [2]
(e) How may we differentiate between logical and physical data flow diagrams? [2]
(f) How may we differentiate between batch processing and on-line processing? [2]
(g) Give an example of a mnemonic instruction and an example of an annotated instruction. [2]
(h) What is the Check-digit for customer number 29645 [4]
(i) using a '3-1-3' weighting and a modulus 10 system?
(ii) using a '2-1-2' weighting and a modulus 10 system?