Glossary definition of Haptic feedback

Haptic feedback is a technology that communicates with the user through movement, vibration or through the use of force.

Haptic feedback is mainly applied at mobile phones that are equipped with a touchscreen that replaces the keyboard. This development is a consequence of a short coming of a touchscreen: there is no feedback that is given to the user when (s)he gives an instruct. This can be solved by giving sound signals, but this is difficult to hear in a crowded environment.