| (a) |
What is the formula for the payback period,
before the introduction of taxes? |
[1] |
| (b) |
Give one example of each of the following
types of interview questions: |
|
|
(i) Open-ended questions. |
[1] |
|
(ii) Closed questions. |
[1] |
| (c) |
What is a Gantt chart? |
[2] |
| (d) |
List three disadvantages of the
structured analysis and design methodology. |
[3] |
| (e) |
Given the basic system model shown below,
identify one area in which an improvement to this model can be made, and also state
one application area in which it could be used. 
|
[3] |
| (f) |
Describe two situations in which you
might use a decision tree. |
[2] |
| (g) |
What is the purpose of a structured
walkthrough? |
[1] |
| (h) |
Describe two potential sources for
conflict which should be kept in mind when determining and evaluating system constraints. |
[4] |
| (i) |
Name two categories of computer-based
information systems. |
[2] |