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In the system test of automatic train protection§system EBICAB 2000 DES, the telegrams and bus data§are being recorded and afterwards stored in a§database for further evaluation and analysis,§approximately 350.000 of single signals every minute§of a test. A client/server concept has been developed§and implemented in order to prepare and reduce the§data in such a way, that only significant values §changes will be filtered out for evaluation. The§existing protocol data analysis function has to be§extended in the way that the analysis could be run§automatically. The intent is to simplify, accelerate§and make safer the visual data analysis, performed by§testers. The comparison between recorded log data and§expected reactions has to be performed, producing the§result in a form of test passed or test failed .§The creation and implementation of mentioned§extension is the purpose of this work.