Accounting for user familiarity in user interfaces

Previous work discussed a model of cognitive distance with the novel concepts of "tech bias", "velocity" and "inertia". This paper presents a revised version of the model of human factors involved, and describes a pilot study that suggests the model presented allows for a very high degree of confidence in predicting the effect a user's familiarity with a problem domain and specific implementation will have on their perception of the directness of the user interface.