Evaluation of the efficiency of integrated ERP systems and business intelligence tools based on the diagnostic cases in the MSE sector

In the paper, an evaluation of the efficiency of the application of ERP class integrated systems and BI tools was carried out, through analysis of two cases micro-and-small enterprises (MSEs). An analysis of the observed successes allowed precise definition of key factors in their successes or failures, in the scope of the efficiency of BI tools application in management. Confirmed rules for guaranteeing of unconditional compatibility of the contents of data warehouses with the transactional databases are, in the opinion of the author, a necessary condition for long-term success with BI application in decisions-making processes. The solutions proposed in the paper for a data processing organisation system were effectively verified over several years’ use at the POZKAL printing house in Inowroclaw. Such solutions force compatibility of transactional databases with data warehouse contents, an area often underestimated by the authors of other publications in this area.