Description: The article provides an overview of methods and tools for describing and analyzing the different types of uncertainty of the environment in the problems of managing large organizations. The analysis of the accounting methods for estimating the risks of decisions in the design of information systems is implemented. The variants of the use of these methods and tools for the development of information support of socio-economic systems are proposed. An approach to the implementation of an effective choice of sustainable solutions under uncertainty of various types of environment influence is developed. The proposed approach is the basis for basic information subsystems of socio-economic system such as DSS and monitoring.
Keywords: sustainable development, socio-economic system, monitoring, decision-making, multi-factorial assessment, the uncertainty, the external environment, the risk