Why Models Are Essential to Digital Engineering

Digital engineering is a trending industry buzzword. It’s something that organizations strive to embrace and tool vendors claim to implement. But what is the practical reality behind the buzz? What are some of the essential aspects of an engineering ecosystem that actually provide the value promised?
In this talk, Brian Douglas of Control Systems Lectures and MATLAB® Tech Talks, and Alan Moore, one of the original authors of SysML and co-author of "A Practical Guide to SysML", discuss exactly these questions and show how models are a central and essential element of digital engineering.
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[@OrangeDurito]

This video makes me sooooo happy and here’s why - 1. First of all, Brian it’s great to hear you sir. Your videos have been truly instrumental in building an intuitive foundation of the control systems I know today. Currently, I am a grad student in Mechanical Engineering specializing in control systems and your videos have helped me in developing a core understanding of the fundamentals which is now driving my thesis effort. 2. Although you didn’t state this explicitly in the video, this is what Model-Based Systems Engineering (MBSE) is. This past summer, I worked as an MBSE intern at Cummins which has started to adopt this approach for hardware product development. I understood almost everything in this video because I worked on those aspects. I understood the fallacies of document-based approach and how MBSE can bring agility in product development but most importantly, maintaining an authoritative source of truth and tool integration is what really turbocharges MBSE. 3. That being said, the book ‘The Practical Guide to SysML’ was the fundamental reference I studied to build my understanding. I cannot overstate it enough how great that book is and hearing one of its esteemed authors is a privilege in itself. It was tool agnostic which helped me in building a foundational understanding of MBSE and SysML without getting lost in the weeds of the tool (which is a whole different ballgame in itself because every vendor implements it differently owning to the subjective/creative style that is left to development and modeling). 4. We used PTC Windchill Modeler for our work and Integrity was used as the requirements management tool. Just yesterday, I got to know that Simulink also supports MBSE and descriptive system modeling and I was reading more on it and today I see this. This video is a great resource that condenses the concept of MBSE and what it can enable us to do. Also, the variation part where there could be two overlapping authoritative sources of truth is the underlying basis of orthogonal variability modeling where you can switch between different components to see how the change is transmitted down the system model and affect other subsystems. 5. What you guys presented in this video through a brilliant script is very similar to what I presented in my final internship presentation and it makes me so happy to get validated that I was able to grasp the essence of digital engineering for agile product development in such short span. Sometimes, it is more difficult to ask the very fundamental questions and by keeping a bird eye view of my work, I was able to practice systems thinking in reality. I am sure it is these questions that MathWorks is grappling with as it continues to develop and improve System Composer. I am really excited to try out this tool when I get a chance. I am sure they can come up with the most robust MBSE software in the market given Mr. Moore himself is on the team. All the best to everyone involved! P.S - Brian, thank you once again and it is great to see you after so long (even though I watch your videos very often).

[@BrianBDouglas]

Thanks for such a nice comment, Chandan! By the way, I haven't left :) I still make videos every 2-3 weeks for the MATLAB channel on all sorts of topics and you can find the whole list here if you're interested: engineeringmedia.com/videos. Best of luck with your thesis!

[@Missionary117]

One authoritative truth model to rule them all! Sauron was truly ahead of his time.

[@djredrover]

"this is Brian Douglas, the control-system boss of all bosses, the King of all kings" would have been a more accurate introduction.

[@ismailmansoor23]

Great Video...as always up to the standard...