Axel Rennoch is computer scientists at the Fraunhofer Institute for Open Communication Systems in Berlin. As a member of the System Quality Competence Center he is involved / responsible for validation and testing projects on next generation networks and software technologies. He has project experiences with the development and validation of industrial test solutions using TTCN in the telecom and automotive area e.g. for ATM, B-ISDN, PNNI, VoIP/Sigtran, CCM, MOST, SIP+SDP and IMS, SIP/ISUP interoperability, SIP/ISDN interworking, IoT, oneM2M service layer.