Abstract: The method provides a method and engine for human-computer interaction (HCI) on a graphical user interface (GUI). The method includes the step of tracking the position and/or movement of a user's body or part of it relative to and/or with an input device in a control space, facilitating human-computer interaction by means of an interaction engine and providing feedback to the user in a sensory feedback space.

Abstract: The invention provides a method for human-computer interaction on a graphical user interface (GUI), a GUI, a navigation tool, computers and computer operated devices. The method includes the steps of: determining coordinates of a pointer with, or relative, to an input device; determining coordinates of interactive objects of which at least two objects are displayed; establishing a threshold in relation to the interactive objects and in relation to space about them; prioritizing the interactive objects in relation to their distance and/or direction to the pointer; moving the interactive objects and thresholds relative to the object priority; repeating the above steps every time the coordinates of the pointer changes; and performing an action when a threshold is reached.

Abstract: The invention provides a user interface for a data processing machine which user interface is combined with a primary display screen for the machine or which is configured to be used with a machine which usually includes a primary display screen, which user interface comprises a secondary touch-sensitive display screen which is configured to be an input device for the machine and configured such that the graphic display of the input device is configured to complement and operatively cooperate with the graphic display of the primary display screen.