Sanford Friedenthal. Sanford Friedenthal is an industry leader and independent consultant in model-based systems engineering (MBSE). He was formerly a Technical Fellow at Lockheed Martin, where he led the effort to enable Model-Based Systems Development (MBSD) and other advanced practices across the company. Dr. Friedenthal has been a leader of the industry standards effort through the Object Management Group (OMG) and INCOSE to develop the Systems Modeling Language (OMG SysML ®) that was adopted by the OMG in 2007. He is co-author of 'A Practical Guide to SysML' and 'Architecting Spacecraft with SysML'. Dr. Friedenthal more recently co-led the effort to develop the next generation of SysML (v2) and co-chairs the OMG Systems Modeling Community (SMC) to further advance systems modeling practices.Alan Moore is an Architecture Modeling Specialist at The MathWorks. He has extensive experience in the development of real-time and object-oriented methodologies and their application. Alan was co-chair of the OMG's Real-time Analysis and Design Working Group and served as the language architect during the development of SysML.Rick Steiner is an independent consultant focusing on pragmatic application of systems engineering modeling techniques. He culminated his 29 year career at Raytheon as an Engineering Fellow, Raytheon Certified Architect and INCOSE Expert Systems Engineering Professional (ESEP).Mr. Steiner has been an advocate, consultant, and instructor of model driven systems development for over 20 years. He has served as chief engineer, architect, or lead system modeler for several large scale electronics programs, incorporating the practical application of the OOSEM methodology and generation of Department of Defense Architecture Framework (DoDAF) artifacts from complex system models.Mr. Steiner has been a key contributor to both the original requirements for SysML and the development of SysML specification. While his main technical contribution has been in the area of allocations, requirements, and the sample problem, Mr. Steiner has also served as co-chair of the SysML Revision Task Force (RTF). He continues to provide frequent tutorials and workshops on SysML and model driven engineering topics at INCOSE events, NDIA conferences, and other corporate engagements.