The Use of Behavioral Diagrams in SysML

The definition of behavior in systems modeling language (SysML) presents special challenges to systems engineers, as overlapping functionality exists among SysML behavioral diagrams. Through discussion and examples, this paper imparts an understanding of SysML behavioral diagrams that will assist systems engineers in defining the behavior of various systems. The paper discusses the following goals of behavior definition: defining activity flow, tracking system state, defining system control, defining interactions, and allocating responsibility.