Originally SIMDAT was designed only to display the simulation data from the Advanced Nautical Simulator (ANS) series. It was widely extended and the current version of SIMDAT now can be used to display, analyze and evaluate data from ANS. During a simulator exercise all data can be recorded in full detail to be available for a very extensive analysis by SIMDAT afterwards. The data which can be viewed can comprise any number of simulated manoeuvres and ships. Specifically from SHS exercises it includes own ships, traffic ships, floating object water or floating objects air. For every object the track can be viewed in a geographical or plane coordinate system alternatively. Besides the track of the ships any other simulated or measured data can be displayed and analyzed in comparison to the actual track. In the same way as for the ANS data the SIMDAT program can be used for analysing the results of the SIMOPT (Simulation and Optimization Software). Additionally SIMDAT is ready to display and evaluate the results from measurements with real ships recorded during Ship Manoeuvring Trials.