A method for identification of benefits gained from developing information systems

Abstract

A specific task of identifying benefits of employed information systems for the purposes of estimating their broad efficiency was considered in the article. The issues that should be addressed while estimating information systems efficiency are indicated. An approach to identifying benefits of an information system that is a multistep iteration process is developed. While following all steps of the method that has been offered, financial constraints should be allowed for and a range of requirements of system need to be reviewed, as appropriate. It has been demonstrated that appropriate mathematical models are demanded to be used in the different phases of the life cycle of information systems. A specific model is opted subject to constraints on a level of uncertainty of initial data. During the early phases of information system life cycle it is recommended to employ fuzzy and congnitive models and while operating it is better to use cybernetic and neural network models.