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Surveys,
Questionnaires & Focus Groups
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Most ergonomics projects benefit
from presenting the product to
volunteers, selected to represent the
eventual customers or users. Generally
these volunteers are called Subjects, and
they are observed, measured and
questioned to gather data about their
interactions with the design.
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Visual
questionnaire methods, like this
body map, generate more
consistent data, by helping
subjects to understand and
concentrate on specific
questions.
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The
numerical rating scores can then
be aggregated for all the
subjects, producing 'real'
numbers which can be manipulated
mathematically. This creates
objective data from a subjective
source, and enables data charts
such as this one, which was used
to inform the development of a
reclining seat:
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