August
1997 QUESTION 4 Total Marks: 20 Marks |
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| 4. | (a) Describe, with examples, two types of data which might be captured by a system. | [4] |
| (b) Why is it important to validate data during input? | [2] | |
| (c) Describe two types of validation and, in each case, give an example of the type of problem it can prevent. | [4] | |
| (d) Give two reasons why designing an effective system output is important. | [2] | |
| (e) Give four reasons why a user might require output. | [4] | |
| (f) Describe four objectives of output design. | [4] |