Find below the markschemes or solution to each of the Theory Exam Style question on 27 days of CS
(a) (i). Outline one advantage of using surveys as a method of obtaining requirements from stakeholders. [2 marks]
Award [2 max]
Surveys allow analysts to obtain appropriate information quickly;
from a large number of persons / stakeholders;
Standardized question formats are prepared;
that can provide data that can be easily quantified/allow quantitative analysis (the success of a survey depends on the effectiveness of questions);
The use of standardized formats;
minimizes the risk if the analyst adding their opinion;
Survey is a straightforward/easy/practical way of gathering data;
it can be distributed using various methods (printed copies, e-mail, embedded in a website, online forms)
Surveys allow greater anonymity for respondents;
which can lead to more honest responses;
(a) (ii) Outline one disadvantage of using surveys as a method of obtaining requirements from stakeholders. [2 marks]
Award [2 max]
Poorly designed surveys;
May make it difficult to analyse the data;
(Response may be limited/not all questions answered / not all forms will be returned; Can be challenging to analyse the collected data ;)
Questions in the survey were not effective;
Can be differences in how people understand the survey questions; Data gathered cannot be quantified;
x = 5
y = 3
x <= 5 - T
y>x - F
XOR = Different = True (1 mark)
2 marks per row as follows:
Day 7 - Apr 12
Day 10 - Apr 15
Day 11 - Apr 16
Day 12 - Apr 17
Day 13 - Apr 18