Effectiveness of cognitively engineered human interface design

In general, it is hypothesized that a cognitively engineered interface design is superior to an interface design that is not cognitively engineered. However, this hypothesis has not been empirically verified. Two decision-making tasks were used to verify the effectiveness of cognitively engineered interface design. Six cognitive engineering design principles were extracted from the literature on human computer interaction, and explicitly applied to the interface design in each decision-making task. Reaction time and accuracy were experimentally investigated. The cognitively engineered interface was compared with an interface that was not cognitively engineered. As a result, the cognitively engineered interface was found to be superior to an interface which was not cognitively engineered across reaction time in both of decision-making tasks