Icon class icon_class fas fa-quote-left icon_class_computed fas fa-quote-left Related content State configurations Source Unified Modeling Language 2.5.1 Copyright information About Object Management Group copyright in text extracts quoted from OMG specifications for educational purposes Snippet kind INFO UML keywords State StateMachine Region composite State State::/isComposite State::/isSimple state configuration valid state configuration active state configuration Previous snippet Full quote A State is said to be active if it is part of the active state configuration. Next snippet Related snippets A StateMachine or composite State may contain multiple Regions representing behaviors that may occur in parallel. In general, a StateMachine can have multiple Regions, each of which may contain States of its own, some of which may be composites with their own multiple Regions, etc. Consequently, a particular “state” of an executing StateMachine instance is represented by one or more hierarchies of States, starting with the topmost Regions of the StateMachine and down through the composition hierarchy to the simple, or leaf, States. Similarly, we can talk about such a hierarchy of substates within a composite State. This complex hierarchy of States is referred to as a state configuration (of a State or a StateMachine). For example, one valid state configuration for an execution of the StateMachine depicted in Figure 14.9 is: <CourseAttempt - Studying – (Studying::Lab2, Studying::TermProject, Studying::FinalTest)>. An executing StateMachine instance can only be in exactly one state configuration at a time, which is referred to as its active state configuration. Related snippets (backlinks) Visit also Visit also (backlinks) Flags
