The article has analyzed the main approaches to the processing of personalized medical information for medical decision making and a tool of implementing it has proposed the system of support medical decision-making, the architecture of this system and the analysis of the results have been done. Here the main stages of analysis of medical information by tools of medical decision support solutions are presented. That enables the decomposition of control process and describes the relationship between management of streams and detalisation of sequence of used methods of presenting data in the system.