A language for a tool set oriented to interactive processing of complex data structures

A language for the description of data and scenarios of their treatment is considered. The language is used in the framework of programming tools being developed at the Research Computing Center of Moscow State University to automize the creation of applications oriented to interactive processing of complex data structures. Basic concepts of the language, some peculiarities of its realization, and various aspects of its usage are discussed. The work was supported by the Russian Foundation for Basic Research (04-07-90288, 05-07-90328).