9.2 The prototypes
Several aspects have been taken into account when designing the prototypes. The most
significant has been for the design to reduce and sort out the information, in order to
reduce the cognitive workload on the user. This is to minimize the errors and the time to
collect relevant information when it is time critical and very stressful. Sounds and
animations have not been considered as options at all, since that would move the users
attention and be disturbing in this noisy stressful environment, where the users are
already using the sounds of the environment using divided attention while working
focused on one task.
In order of cultural aspects, it might seem as if the designs are completely
western, even though it was a requirement that it would be company independent.
According to the information retrieved on different cultural aspects in interface design,
the design is satisfying in any part of the world. The timeline being read from left to right
is not the most common in all parts of the world, but even so, the use of western
computerized systems has made this visualization of time generally accepted.
The choice of colors has been decided in accordance to be carriers of
information, meaning they have the same meaning and does not change in appearance
even though the user might be colorblind. The cultural aspects of colors have also
contributed to the decisions, since some colors might have different meaning in different
cultures. The color red has been avoided, since this is connected to danger in some parts
of the world, and all the graphical objects carrying information with colors are alarms,
meaning the color should not affect the priority or draw attention from the others.
The icons has been decided upon from different aspects too, like the most
commonly used trying to match the users internal model with the underlying functions
reducing the cognitive workload, and the cultural aspects of the meaning if the icons. The
icons are not to appear alone, there is also a describing text to what function it is, this to
reduce the possible confusion of what it is presenting.
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