The paper reports on the activities in the research project “Development of suitable information systems for early warning systems”, where, inter alia, mass movements due to slope failures in soils are analysed from a geotechnical point of view. Geotechnical models are applied to investigate causes and triggers of slope failures and to determine threshold values for the definition of critical events. To facilitate the analysis of slopes with the Finite-Element-Method, the users are assisted in the generation of simulation models by a GI system. Moreover, the GI systems provide a basis for the processing and visualization of computation results for the needs of early warning systems. Therewith the users are able to interpret the outcomes of the simulations and to assess the dangers emanating from investigated slopes. The concept is prototypically implemented for a segment of the slopes in the Isar valley south of Munich, Germany, to evaluate the developed techniques, regarding the applicability for and the improvement of warning systems for landslides, critically.