Navigation Systems

Labels Within Navigation Systems Because navigation systems typically have a small number of options, their labels demand consistent application more than any other type of label. A single inconsistent option can introduce an “apples and oranges” effect more quickly in a navigation system, which usually has fewer than 10 choices, than in a set of index terms, which might have thousands. Additionally, a navigation sys‐ tem is typically experienced repeatedly throughout the environment, so navigation labeling problems are magnified through repeated exposure.

Users rely on a navigation system to behave “rationally” through a consistent location and look; labels should be no different.