COMMENT of scientific supervisor on final bachelor qualification work by Pavlov I.N., student of the Faculty of Applied Mathematics - Control Processes of St. Petersburg State University  on the topic of «Algorithms and software modelling and calculating systems using graph theory»  The purpose of this work is to create a software tool that provides the construction of a mathematical model of the system with the help of a graph characterizing the given system. Graph theory is a powerful tool for modeling and calculating for systems of various physical natures. But the application of methods of graph theory meets the following difficulties: • there is no direct method for determining the physical realizability of the system given by the graph; • known methods of constructing a mathematical model for a system are based on manual operations and can not be used for complex systems. Thus, the topic of the final qualifying work is undoubtedly actual. In the course of the work, the following elements of the software system were developed and implemented: – algorithm for constructing a graph tree from an adjacency matrix; – algorithm for constructing a set of independent contours; – method and algorithm for determining the physical realizability of a system given by a graph; – algorithm for constructing a system of equations of independent contours. The author demonstrates excellent knowledge of the methods of the theory and algorithmization of applied problems, confident possession of the tools chosen by him for software development, as well as the ability to independently set and solve problems. The lack of work can perhaps be attributed to testing only on the simplest model, which does not allow us to make a final conclusion about the effectiveness of the developed software system. On the basis of the foregoing, I consider that the final qualifying work deserves evaluation is excellent, and its author, Pavlov IN - assignment of the bachelor's qualification.  Scientific supervisor, Doctor of Engineering, Associate Professor 				A.G. Karpov