Navigation targets should be easily detectable.
Additional Information:
When moving from one location to another on the display page, cognitive demands are imposed on perceptual processes for detecting the target information item. These demands may increase the amount of time required to complete the navigation move and, therefore, increase the likelihood that the information held in working memory will be lost. Therefore, the HSI should be designed to facilitate target detection. For example, the targets should be visually distinct from the background. In addition, the scrolling, panning, or zooming motions should be sufficiently slow when approaching the target so the user can recognize the target.