In the world of model-based systems engineering (MBSE), there is still a fair amount of confusion around what makes a good—or even acceptable—MBSE model. George E. P. Box, the English statistician, famously observed, “All models are wrong, but some are useful.” He further clarified that idea with this expansion, “Remember …

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 …