4.Consistency and Standards
–Users should not have to wonder whether different words, situations, or actions mean the same thing.
–Follow platform conventions.
5.Error Prevention
–Even better than good error messages is a careful design which prevents a problem from occurring in the
first place.
6.Recognition rather than Recall
–Make objects, actions, and options visible.
–User should not have to remember information from one part of the dialogue to another.
–Instructions for use of the system should be visible or easily retrievable whenever appropriate.