The book discusses the current state, problems and tasks of construction distributed information management systems of multiply connected objects (DICS MCO). The analysis of the generalized structures of DICS MCO. The description of MCO is presented: basic characteristics, mathematical models, fields of application. The structure of information redundancy in the DICS MCO, methods for its reduction are investigated. A method for constructing DICS MCO structures based on tensor analysis and their optimization by the pair substitution method is presented. The analysis of information characteristics is carried out, the reduction of redundancy of information by direct methods and when using decorrelating and orthogonal transformations of the DICS MCO is considered. The results of a study of the issues of switching information flows without taking into account the mutual relations between channels with dependent (correlated) channels and the alignment of compressed data flows are presented. The results of the synthesis of structures and algorithms for the exchange of information with minimization of the specified parameters for the exchange of information between subsystems in DICS MCO.