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A program is required to
print a report of each detailed record contained in a transaction
file. Each record has an indication of the record type, called its
batch ; thus, records in the transaction file are grouped into batches.There
are three types of batches: credits, debits, and account descriptions.
There may be any number of batches and they may occur in any order
in the file. The report itself has the standard report structure of
header/body/footer. The report will print these records sorted by
batches. Each batch has a batch header, followed by any number of
detailed records belonging to that batch.
(a)Draw a fully labelled sketch of what the report should look like,
labelling clearly each section of the report.[4 marks ]
Diagram
of the ReportCorrect Identification of Report Header, Body and Footer:
1 mark
Correct Identification of three main types of records:Credit, Debit,
Account
Description: 2 marks.
Correct Identification of records existing in each type: 1 mark.
(b)Making use of Jackson ’s notation, draw the logical data structure
for the transaction fie.[9 marks ]
(c)Write down two of the advantages of
using the Jackson Structured Programming technique.[2 marks ]
Any of
the two advantages (1 mark each, total 2 marks)
• Enable correct programs to be produced.
• Provide a method that is “workable ”within the intellectual limitations
of the average programmer.
• Techniques that can be taught in an academic fashion.
• Facilitates the organised control of software projects. (Answers
indicating that “JSP is easy to use ”are not to be awarded any marks)
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