| (a) |
(i) What is meant by the term data
dictionary? |
[2] |
|
(ii) Draw and describe each of the five
symbols which may be found in a data dictionary. |
[5] |
| (b) |
(i) List three points which illustrate the
relationship between the data dictionary and the data flow diagram in a structured
specification. |
[3] |
|
(ii) List two differences between data flow
diagrams and structured flowcharts. |
[2] |
| (c) |
A development team has recently finished its
analysis of a current system. However, the analyst preparing the data flow diagram is
inexperienced and has made several mistakes. Identify each of the errors in the diagram
below. 
|
[8] |