Munzer A. Model of fragments of a relational database in technologies of raising productivity of information systems

. The dissertation focuses on development of models and methods for studying Information Systems (IS) for the purpose of implementing Technologies for Raising their Productivity (TRP). The work puts forward an improved a method of the study of the characteristics of relational database (RDB) which differs in detection of most frequently used quiries, tables and their boxes. implemented extrapolation of intensity trends in use of various types of quiries, use of tables and boxes, change of records number. For the first time has been proposed a simulation model of RDB fragments, distinguished by formation of the RDB fragment around a structural element, subject to modernization with simultaneous creation an appropriate sequence of queries. For the first time has been proposed method of preparation of numerical, time, string data and how to replace original images with simultaneous change of quiries, being noted for saving of all characteristics necessary for modeling and maintaining information confidentiality. This results showed a reduction in the time of modernization of the system by approximately 40 percent.