The paper presents a hierarchical grouping of the most significant factors determining the level of environmental and economic efficiency of BAT, their interaction and meter types. The problem of efficiency of BAT was considered from the point of view of measurement vulnerability of its factors mainly in terms of costs, especially for environmental factors and intellectual labor evaluation. It is shown the process of measuring the impact of factors for adequate evaluation of the effectiveness needs to be done multi-dimensional, what is achieved through a combination of natural, labor and cost meters and their mutual coordination. For discussion it is proposed a mechanism for such coordination using the procedure of financial performance greening and green certification, as well as methods of labor reduction, improved on the basis of modern information technology in the form of automated expert systems. The characteristics of expert system of information simulation aggregation (by way of example of aggregation of BAT effectiveness expert evaluations) with specific examples of its substantial part were described. Basic algorithms of optimal classification procedure by minimum loss information were listed.