The development of Ukrainian economics observed in the last years and its orientation towards the integration into the world economics community, as well as large-scale introduction of market relations require the radical structural changes of economic potential of subjects of entrepreneurial activity and adequate policy directed towards the increase in the efficiency of their economic activity.
This article describes the steps to clear data in the DSS. The ontology concepts of clear data were proposed and described. The analysis of methods and data cleansing technology were carried out at every stage of the process, taking into account its features. Built The ontology of data cleaning techniques for methodological systematization of functional elements in the implementation model of DSS was built.
In this article brought theoretical and practicals proprals about valuation of the expert method
of the valuation property. Research and conclusions made on the base of the statistic theory
and economy – mathematics modeling.