In a plurality of sub-systems, a respective sub-system processes data according to a logic system specific to the respective sub-system. At least some of the sub-systems respectively include at least one acquisition unit which is configured in such a way that it acquires information relating to the processed data of the respective sub-system and converts it into a predefined data structure which is the same for at least some of the sub-systems. the acquisition units are connected to a common analysis unit which during operation of the communication system receives information from the acquisition units relating to the processed data in the predefined data structure and analyzes it in relation to predefined criteria.