The Language of Models

We talk a lot about “modeling language” in the world of systems engineering. That phrase gets used in a variety of ways with different meanings. It is the focus of discussions of standards. And yet, the variety of the usage of “modeling language” has some deleterious effects on the understanding …

MBSE: System Models, Executable Models, and More

When engineers speak about model-based systems engineering, or MBSE, the term “model” is used in many ways. Unfortunately, this only creates confusion between systems engineers, modeling and simulation engineers, and detail engineers. We all use models, so does this mean we’re now model-based? No. Remember that MBSE was devised as …

Systems Thinking: Schemas, Metamodels, and MBSE

“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 …