Transactional Business Application Based on Microservice Architecture

This paper discusses a transactional business application based on microservice architecture. The main advantages and disadvantages of monolithic and microservice architecture are analyzed. A mathematical model of integration of data of information systems with inhomogeneous ontological specifications is developed.A software system for data integration of information systems has been developed, which implements the proposed models, methods and algorithms. The architecture is built, which allows to work optimally with several data sources. The practical application of the obtained business application is demonstrated on the example of a company that provides centralized gas supply services.