Humancomputer interaction Assignment Example | Topics and Well Written Essays - 250 words - 1

Humancomputer interaction - Assignment Example The mental model encompasses operations that work in just like the computer. Most of the computer interfaces developed for visually impaired individuals are designed for those who have not lost their sight completely. Many HCI use several other types of feedback such as haptic and tactile feedback system. However, these interfaces are normally supplemental to the visual communication. As such, it is essential to note that those who have not lost their sight completely will be in an enhanced position to access several computer applications based on the haptic and tactile system, Clifford (2008). When interacting with the computer, some of the critical movements very useful include movement aside (Fig. 1a), pressure (Fig. 1b), static contact (Fig. 1c) and encircle and follow object contour exploration procedures Individuals with no sight or with reduced sight use these model in an analogous way. A significant constituent of the ability to create cognitive models for features in the physical world is closely correlated to the sense of feeling or touching. Touching is the only sense that allows simultaneous input and output interaction with the computer in two directions. The usual interfaces for normal people use only one