Tim Weilkiens is a member of the executive board of the German consulting company oose, a consultant and trainer, lecturer of master courses, publisher, book author, and active member of the OMG and INCOSE community. Tim has written sections of the initial SysML specification and is still active in the ongoing work on SysML v1, and the next generation SysML v2. He is involved in many MBSE activities and you can meet him on several conferences about MBSE and related topics. As a consultant, he has advised a lot of companies from different domains. The insights into their challenges are one source of his experience that he shares in his books and presentations. Tim has written many books about modeling including Systems Engineering with SysML (Morgan Kaufmann, 2008) and Model-Based System Architecture (Wiley, 2015). He is the editor of the pragmatic and independent MBSE methodology SYSMOD – the Systems Modeling Toolbox.