Abstract
An approach to the software system development dedicated to the interactive learning of sign language is proposed. A basic architecture of the system, its modules, format and transmission protocol of the data are created. The article also describes the main module of the system responsible for the synthesis and the animation of the gestures and facial expressions of the emotions based on the three-dimensional pattern of a human body. It describes main requirements for the module, analyzing basic problems and the implementations for their solution, architecture and components, especially the ones that are responsible for the generation of the animation, its structure, the algorithm of gestures' combination and their graphical processing.