Exit Connection Point Reference   An exit connection point reference represents the exit point to a submachine state. It provides a source for a transition leaving a submachine state and is the only way that a submachine state can be referenced. A submachine state may have any number of exit connection point references and these represent exit point pseudostates defined in the submachine state.

Explanation

A submachine state is a mechanism for reusing or structuring states and is typically included in higher-level diagrams, an exit connection point reference provides a way to connect to the submachine state. It has the same appearance as an exit point pseudostate but lies on the border of the submachine state. Transitions that have an exit connection point reference as their source are effectively referring to an exit point pseudostate that is defined in the submachine state. It is an analogous (but different) concept to a port for a class: it acts as an external point of connection and limits the modeler's need to know about the internal structure of the submachine state.

Related Entries

Entry Connection Point Reference  Used Together,  Paired Element An entry connection point reference is related to an exit connection point reference because they are paired elements and typically appear together, one used to mark the points of exit and the other marking the single point of entry to a submachine state.

Submachine State  Owner of Element A submachine state is related to an exit connection point reference because they are used together. The exit connection point reference provides a way for a modeler to reuse the submachine state using this node as an exit point without the need to know the internal working of the submachine state.