Control Conception
Apart from ergonomically favourable seating position and restrictions to visibility that are kept as small as possible, the layout of the driver seat is carried out keeping in mind the optimal fulfillment of all the necessary control processes that are required to drive the vehicle. The target of control conception therefore is the simple and safe operation of all control elements of a motor vehicle. The block diagram above shows the requirement criteria.
The recognition of a control element and the information element is undertaken either visually or by the sense of touch. Certain possibilities for optical differentiation are:
          Colour
          Brightness
          Contrast
          Symbols
The important aspects with regards to the sense of touch are:
          Form
          Position
          Size
          Distance to each other (with associated components)
Warning functions can be additionally emphasized using special indicators (blinking lights, colour changes).