Методика ранжирования систем мониторинга ИТ-инфраструктуры предприятия
The article researches the issues of enterprise IT-infrastructure Monitoring Systems evaluation and choice to satisfy customer's requests. The authors describe the modern Monitoring Systems functions and features. The questions of ranking alternative Systems according to the customer’s requirements and characteristics of the IT-infrastructure of the enterprise are observed. The Monitoring Systems evaluation criteria and methods of constructing a system of decision support (DSS) for choosing the most satisfactory Monitoring System are investigated.
The choice of Monitoring System is a complex multi-criteria procedure. The authors propose to replace this rocedure with the clear and understandable decision-making algorithm that uses a valid sequence of simple for a person procedures. A set of alternative variants (Monitoring Systems set), an array of criteria for the selection of the most rational variant and limitations on parameter’s values of the Monitoring Systems are specified to formalize the decision making task. The evaluating technique of the criteria mutual importance is suggested, using the decision making methods: the analytic hierarchy process or rank method. The possibility of reducing the number of criteria by transferring part of their limitations is considered. The construction of criteria hierarchy is proposed to simplify the calculation of weights of criteria: functional criteria; reliability criteria; criteria for the user’s interfaces evaluation; criteria of integration degree with customer support; criteria for the deployment, maintenance and support; cost criteria. The correspondence method selection for Monitoring Systems parameters linguistic descriptions with criteria scales for building decision support systems is produced. The proposed method consists of the following main steps: formulation of decision-making task, relative importance calculation of the Monitoring Systems evaluation criteria, Systems relative
value calculation. The application example of the proposed method is illustrated.
The involvement of experts is proposed as an alternative approach to solve the problem of Monitoring Systems selection and ranking. In this case, the procedure is performed on group decision making base, in particular – the minimum distance method. The advantage of the proposed technique is the possibility of the Monitoring System choice automation. The application of these methods will improve the decision objectivity to take into account many factors, including the enterprise IT-infrastructure specifics. Software development based on the proposed technique will allow integrator companies and consulting companies to reduce the time of making the most rational decisions.