The transition from transactional systems to systems for business management is a considerable challenge for any organization. The failure of ERP implementation often leads to failure of the entire organization. The proposed principle in the study of the transition from one system to another in this work is system evaluation. Previous studies have shown that it is difficult to operationalize offered conceptual models for the evaluation and comparison of information systems. A key hypothesis of the work is built on the assumption that based on the survey of information system users we can make an assessment of the necessity of the transition to the new system and evaluate improvement if the changes are carried out adequately. On account of researched and tested methodological concepts, analysis of numerous practical experiences and the implementation of direct research on dozens of real business systems, the author of the dissertation tried to make recommendations accompanied by the model, method and data for a complete and rapid assessment of the system that is being abandoned and the assessment of the need to introduce a new system. In the foreground of the proposed model is the efficiency of the system from the point of view of users, changes in business processes, management and economics performance. The dissertation consists of the following chapters: 1. Introduction – identification of problem areas 2. Overview of studies - Context 3. The objectives, hypotheses and research methodology 4. ERP versus transactional information systems - from transactional information systems to ERP 5. Research results 6. Conclusion 7. List of literature