Similarity guidelines for primary stations

Screen uniformity

Uniformity facilitates learning and ensures fast recognition of new screens.

Apply uniformity to visual objects of similar attribute, to facilitate the learning of new objects of the same attribute.

Screen distinctiveness

Distinctiveness enables at-a-glance recognition of the particular object

Apply distinctiveness to visual objects and modes that must not be confused with other objects or modes.

Design

Screens used in routine operation should be distinguished from each other by other dominant visual attributes, such as layout, background color or figure, etc.