7.2.4-5 Appropriate Use of Continuous-Adjustment Interfaces

Continuous-adjustment interfaces should be used when precise adjustments along a continuum are needed or when many discrete settings are present.

Additional Information:
Continuous-adjustment interfaces, such as soft sliders, provide continuous adjustment and are, therefore, suited to selecting a setting from a continuum. Because these interfaces often require a gross slewing movement followed by fine adjustment, setting them correctly may require more time and attention than discrete input formats. Therefore, they should not be used in place of a discrete-adjustment interface for selecting from a small set of options.