The main purpose of a systems engineering tool is to augment the work of the systems engineer by providing a framework in which to construct a model of the system. This helps in two major ways. It allows the tool to do the record keeping, assuring the consistency and completeness …

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 …

We often think about verification as something that is done toward the end of the development phase of a program, which must be concluded just prior to entering the operational phase. While that is true in terms of execution and reporting of the final, formal verification activities, in reality, the …

In the past few months I’ve been writing about how to model basic SysML concepts of behavior using GENESYS. SysML has three largely separate approaches for modeling behavior: activities, interactions, and states. I’ve covered the modeling of behavior using activities and interactions in August (Modeling SysML Activities in GENESYS) and …