Industrial Automatic Control Systems and Controllers Annotation << Back On the Issue of Improving the Quality of the Subscriber Service of the Automated Document Exchange System Sobol V.M. The article discusses the issues of improving the subscriber service of specialized document exchange. Information is provided on the basic information architecture of the communication complex and its software in the form of a hierarchical decomposition of functions and tasks. A graphic model of the organization of documentary exchange is presented. Keywords: subscriber service, telecommunication network, document exchange, software, hierarchical decomposition, verbal model of dialogue. DOI: 10.25791/asu.1.2025.1554 Pp. 03-10.