CAU_Causality - Causality

A causality defines one or more events and actions that describe the reactions on the events. Related events and actions are linked by means of a reaction. In the case that the event generating instance is the acting instance as well, the reaction is described as self reacting. More sophisticated reactions can be described by means of reaction paths, which refer to a number of related instances as reacting instances. When the reacting instance is an unrelated (observing) instance, it must be registered explicitly for observing the event.