Relevance. The work is devoted to solving a topical scientific and applied problem in the field of information technology - analysis of information and analytical support systems in the field of administrative management, taking into account the requirements of complexity, support management decisions based on knowledge-oriented tools, and integration of information and analytical support systems. interoperability. Results. Conceptual structures of the governing body and ASIAS are constructed, the model of information-analytical activity in the governing body is offered, ASIAS is structured with allocation of their basic structural elements. The unified architecture of ASIAS is offered, the structure of the necessary components of ASIAS realizing processes of collecting and transformation of the information (documents) is defined. The scientific results of research are the basis of a new theory of situational regulation of technological processes in the governing body in the automated processing of information flows, the application of the concept of "executive obligation" with the implementation of appropriate policies, theory of information document flow processing as a component of tele-traffic theory, models of research of specificity of information load of ASIAS in stationary mode, intensity of processing of document flows and interaction of processing processes, solving the problem of structuring knowledge based on the methodology of growing pyramidal networks, based on the theory of logical-linguistic information models, and ontological descriptions of information. Based on these paradigms the possibility of construction of ASIAS as complex corporate systems on the basis of the tested decisions is defined. Thus, components of the general methodology of use of information technologies should be the factors received as a result of researches of the given work.