the icon. On the other hand, icon plus command refers to the presentation of the
icon with a simple command of what the driver should do.
A total of 27(3x3x3) different images where presented in random order with 3
times repetition. The repetitions help to be more precise with the preferences of the
driver with respect to the design satisfaction. Participants were ask to grade each of
the image with a 7 points Likert scale, where 1 represented very low satisfaction
and 7 represented very high satisfaction.
Table 2 Table of images used in to evaluate the satisfaction of instrument
cluster icons.