A single source of truth. This is one of the most used and most overloaded terms in model-based systems engineering – perhaps second only to “model” itself. A clear and compelling objective on the surface, it is shorthand representing an aspiration for project teams and a benefit of adopting MBSE. …

We have all seen some variant of the famous Sidney Harris cartoon – two people standing at the chalkboard, an incredibly complex series of equations or process flow on the left, a simplification or result on the right, and the words “then a miracle occurs” in the middle. It’s an …

By David Long, Vitech President “The biggest errors are made on day one.” Sadly, those involved in systems engineering live this every day, but not necessarily in the manner we think. Though we strive to avoid this pitfall and address it in the systems we develop, the very way we …

By David Long, Vitech President Just like simplicity, not all precision is helpful. Heresy? Not for engineers. Engineers are taught to use the appropriate degree of precision for the circumstance at hand. Unfortunately, as systems engineers, we too often forget those lessons. The quest for precision can lead us astray, …