A scale for a first business intelligence (BI) report is determined and filters over data properties of received BI data are applied. A first BI report is generated. A second BI report based on the same BI data is generated for comparing with the first BI report. For the generation of the second BI report, the same data properties are filtered as for the first BI report. The first and the second BI reports use a common scale and are displayed as two layers placed one on top of the other. In some aspects, multiple other BI reports are generated and visualized for comparative study together with the first and second BI reports as overlapping layers. These multiple BI reports share the same scale as defined for the first BI report and include filters for the same data properties as for the first BI report.