Modelling the methodology to assess the effectiveness of distributed information systems

Abstract

This research aims to develop the methodology to assess effectiveness of distributed information systems (hereinafter IS). The effectiveness of information systems is reviewed along with their reliability. The article underlines the importance of reliability assessment for large geographically distributed systems. We suggest the approach based on the hierarchical presentation of reliability scheme that constitutes the core of the mathematical model for reliability of a distributed system. The key advantage of the suggested approach is its applicability on geographically distributed systems of different architecture. Successful testing during effectiveness and reliability assessment on 3 geographically distributed IS allows to suggest that the developed methodology is ready to be used in IS reliability assessment projects.