As part of this thesis adaptable cost- and claim-management systems for large-scale projects were researched. The purpose of this investigation was to ascertain whether a flexible possibility for handling the stream of information from the mentioned topics exists or whether a tool for that use could be developed for a flexible, interdisciplinary deployment use. The first step was to identify suitable systems for the state of the art cost- and claim-management which was done through an empirical investigation. Based on this evaluation the most suitable software was chosen. Following a designated procedure, this commercially available system was tested against an individually developed, excel-based programme under the consideration of fixed selection criterions. Moreover, the suitability for information processing and for mediation in the field of cost monitoring, manipulation of claims, and controlling was examined. To ensure a connection to praxis a subsequent assessment considered a realistic process of induction in an ecological and social structural engineering project. The advantages and disadvantages resulting from this investigation were collected and the alternative software was adapted under the consideration of any major deviations from the commercial programme. Ultimately this thesis showed, that a flexible system, which meets all of the cost- and claim-management requirements is not available at the moment. Nevertheless, the new product might be suitable for interdisciplinary utilisation when the discovered disadvantages of the programme have been corrected. Due to this insight, a suitable programme can be developed more effectively in the future.