August
1999 QUESTION 5 Total Marks: 20 Marks |
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| (a) | List two basic principles which
should be followed by systems analysts and programmers during implementation.
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[2] |
| (b) | List two guidelines for establishing
training.
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[2] |
| (c) | (i) Define, using an example, the term modular
conversion. (ii) Give two advantages of modular conversion.
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[2] [2] |
| (d) | (i) Describe, using an example, how phase-in
conversion differs from modular conversion. (ii) Give one advantage of the phase-in approach.
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[2] [1] |
| (e) | (i) Define the term direct conversion. (ii) Describe three situations in which direct conversion might be applied. (iii) What is the primary advantage of the direct conversion approach? (iv) Describe a modification to the direct conversion approach which can minimize the risk of failure.
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[1] [3] [1] [2] |
| (f) | (i) Define the term parallel conversion. (ii) List one disadvantage of the parallel conversion approach.
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[1] [1] |