The competitive situation in an industry imposes constantly increasing requirements to production, meaning that a company’s activities have to be optimized, reducing the time of development and implementation of administrative decisions. Practically all companies have been actively engaged in increasing the operational efficiency: the main business processes are transformed, new methods of work take root, ways of motivation of employees are improved and labor productivity is increased. For this reason, the task of developing an approach that would allow to constantly and systematically increase the efficiency of an enterprise’s activity becomes particularly important. This approach includes a set of interconnected elements allowing to optimize the strategy of achieving ambitious goals including choosing, implementing and adjusting the tools for improvement. The efficiency of this approach depends on the level to which the enterprise is ready for changes, i.e., on the level of development of the enterprise system. If the enterprise’s degree of readiness for changes is low, the stability of the transformations introduced decreases, the operational results cannot be increased, the possibility of further development is hindered and the competitiveness is reduced. If the enterprise’s degree of readiness for changes is high, the financial results can be constantly improved, maintaining a high level of productivity for the enterprise, despite the changing internal or external factors or un predicted perturbations in separate areas. The article describes the approach for assessing the level of development of business systems. We have defined the set of interconnected elements providing stable introduction of business system tools, allowing employees to achieve ambitious goals through using instruments of continuous improvement. We have offered elements for assessment: value of the company, strategy, goal-setting, involvement, organizational structure, customer focus, accounting system, safety of work, business system infrastructure, business system configuration, role of the CEO. Applying this approach allows to determine the degree of readiness of the company for transformations at the stage of diagnostics, to create the optimum program for introducing the tools and to raise the degree of stability of development of the business system of a specific company.