With a system of modeling, simulation, animation of information, communication in medicine (mosaic-m) the structures of Organisation and information in a level 1 trauma center were analysed and animated as a Virtual envirement on screen in a first step. One result: in existing paper orientated documentation 50% of documentation was redundant. In a second step the requirements of the future information system were described systematically, user- and organisation-oriented. All components (hard- and Software) were simulated an screen that the user could work virtually in the future working place. With mosaic-m the user is fully integrated in analysing and developing a new information system in the clinic.