Redundant Cues

Redundant cues are necessary because some individuals can’t connect certain cues to the signals connected to them.

An example of a redundant cue is the use of color and shape to represent the same meaning to the user. Since colorblind people cannot see colors and there are around 10% of males who have some form of colorblindness, the additional use of different shapes can be a helpful cue to indicate the same meaning as the use of different colors (for example, AIM)

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