We propose a metamodel-oriented framework for modeling business analytical indicators. In the modeling we apply the CWM?s Behavioral metamodel and discuss the advantages of using it to plan and model business warehouses. We show how to model indicators in the conformity with such a metamodel. This approach, which is based on a standard metamodel, allows us to realize data transformations between different implementations of different data repositories. In this way, it is possible to achieve interoperability of independently designed data warehouse systems.