Complexity is a term that not only defies any disciplined usage in our usual discourse, but also lacks a rigorous definition even in academic circles. It is often confused with complicatedness and is popularly invoked whenever we see many parts arranged in intricate relationships and interacting in hard-to-predict ways. In …

In model-based systems engineering, we tend to focus on requirements and design, but how many MBSE implementations consider aligning design with verification and validation (V&V)? The Vitech systems metamodel is especially capable of supporting V&V activities throughout the development lifecycle on either side of the “V.” Let’s take a look. …

“Metamodel” and “schema” are terms that get thrown around when we talk about systems and modeling of systems. But what do they really mean? “Meta” comes from the Greek and literally means “above” or “beyond,” but has also come to mean “about” or “of,” so a metamodel is a model …

We all understand that our complicated world is giving way to a more complex one. We also recognize that our systems engineering techniques used to create modular designs are breaking down as we deal with new levels of complexity. It seems we don’t talk so much about modularity and its …