Now European Society pays especial attention to the problems of handicapped persons, 
which have partial dysfunctions of some organs. There are several kinds of disabilities: 
voice, vision, hands, legs, ears. They are not able to use standard means 
to interact with computer, domestic technique, moving objects, etc. 
It leads to limitation of their social activity and life status. 
To rehabilitate the lost ability such modern scientific direction as multimodal interfaces is developed. 
Multimodal interfaces combine speech with other natural modalities (gestures, movements of head, lips, etc.).
 Multimodality allows choosing an accessible way of interaction in the concrete application for the concrete user. 
In multimodal systems the information from several video, audio, 
sensor communication channels is continuously detected and processed 
to create real and virtual environment, satisfy the wishes of a user 
and quickly adapt to the current task and applied aspects.