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 …

As Hurricane Sally crawls toward the Louisiana shores of the Gulf of Mexico, her 80 mph sustained winds are no match for the lashing 150 mph gust of her category 4 older sister Laura. But where Laura strode into Lake Charles, Louisiana driving her swath of damage forward at a …

There have been a number of attempts at generating a mathematical definition of a system, dating back to at least Ludwig von Bertalanffy’s now classic book, General System Theory, published in 1968. The systems engineering community would benefit greatly from such a definition, which would define a system precisely in …

In last month’s blog, Modeling SysML Activities in GENESYS, I discussed how to model behavior using activity diagrams. What, though, are interactions? Interactions are a UML concept brought over into SysML that can be used as an alternative approach for modeling behavior in SysML. Interactions are distinct from activities and …