The article presents models, methods and algorithms which support decision-making process at various stages of the functional management in the telecommunications industry organizations (TIO), taking into account the different types of uncertainty. There is a conceptual model of quality management TIO processes and the method built on its basis, which includes the step of selecting indicators of different hierarchical levels with the stakeholders requirements; a step of goal-setting process: setting the target values and the search for sustainable balance of system indicators; multi- criteria evaluation of the current system state and the design of improvements for the «best» alter- native.