Ulianova O. Models and methods for multi-criteria synthesis of physical structures at the computer-aided designing of the distributed databases

Research object - processes of multi-criteria synthesis of physical structures of the distributed databases. Research target is working out of effective mathematical models, methods, algorithms and tool means for multi-criteria synthesis of physical structures of the distributed databases and the decision on this basis of the important scientifically-practical problem of increase of efficiency of systems of automation of designing of the distributed databases. Research methods: methods of the system analysis, the theory of counts, theories of utility, multifactorial estimations, theories of mass service, mathematical programming. Research apparatus: personal computer. Theoretical and practical results - the developed mathematical models and methods of multifactorial synthesis of physical structures develop a methodological basis of creation of effective tool means of systems of support of decision-making for technologies of the aided designing of the distributed databases. Novelty - firstly solved the multi-criteria mathematical model of synthesis of physical structures of the distributed databases for the general is developed for computer networks of any structure, considering their cost and functional characteristics, uniting known single problems and allowing by change of system of restrictions to receive known single models; the method of the truncated search of variants is developed for the problem decision of multi-criteria synthesis of physical structures of the distributed databases, having essentially smaller time complexity, than known methods of search; imperfections mathematical model and a method for an estimation of time of access to information resources of the distributed databases in a direction of their distribution on computer networks of various structure; have found the further development methods of synthesis of physical structures of the distributed databases on the basis of schemes of additive algorithm Balash, coordination optimization and evolutionary synthesis by the account of features multi-criteria problems that allows to receive more effective design decisions taking into account set functionally-cost indexes. Research results introduced in the state budgetary research works which are carried out according to the thematic plan of research works Kharkov National University of Radio Electronics, financed at the expense of the Ministry of Education and Science of Ukraine (the certificate from 20.04.2010); in educational process on department of system engineering Kharkov National University of Radio Electronics (the certificate from 20.06.2010); in SRI of Biology of the Kharkov national university of V.N. Karazina (the certificate № 68 from 19.01.2010). Science and practice results of the dissertation may be used at synthesis of physical structures of the distributed databases of the information systems, territorially distributed systems of service, management and monitoring and also in scientific research institutes and at the enterprises which are engaged in working out and operation of similar systems.