I. Introduction
The article focuses on improving the level of language description of the subject area of CASE [1] , [2] , [3] systems. This approach is aimed at the process of designing software systems with the help of domain experts. In the article discusses the method for automatic design based on automated synthesis of Unified Modeling Language (UML) [4] models of the application program to control the test stand. The application program control the test stand allows to set the required parameters of operation of the power plant, simulating the different flight modes of the unmanned aerial vehicle (UAV [5] ). The test stand is designed for controlling electric motors and servos swashplate (give the General and cyclic pitch).