Clarity encompasses both content and context Consistency Consistent visualizations are standardized and consistently formatted. Interaction requires a minimum of keystrokes or pointer manipulations. Shapes, colors, and layouts should be used consistently through all screens.
If the color red is used in one place to designate an abnormally high value on one screen, that same color red should be used to indicate all abnormally high values of the same type on all screens. If navigation buttons are on the left side of one screen, they should be on the left side of all screens.
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