The methods used in the hydraulic modelling and for modelling the waterway systems with multi-dimensional mathematical models warrant a structured, information-assisted work process where the necessary observation and simulation data are obtained, processed, managed and evaluated without discontinuity of media. The evaluation of field study measurements and model data aims in particular to extract the key information from what is often a very large quantity of data by means of characteristics analysis. These characteristics permit the comparison and classification of the status of the waterway systems and can also be used for predicting probable future developments. The method base developed in the BAW is supplemented by research and development projects and extended with reference to new specific issues. At the moment for example, work is in progress to include methods for ship handling simulation.