Fig. 1.

Overview of the architecture of the nursing intelligence system consisting of two layers. The first layer is dedicated to data integration and management and holds the data extraction, transformation, and loading routines as well as the integrated data repository, a so-called nursing data mart. The second layer, dedicated to data analysis, provides a web-based analysis platform with predefined, adaptable reports for standard analyses. For special analyses and advanced analysis techniques, separate subsets from the nursing data mart can be obtained by individual queries.