Dr. Kovac, November 1994. In this paper we have shown, that the rule semantics considered by the trac method can easily be expressed by Petri nets of the type PN PKB . For these kind of models we get the same quality of results as the tracmethod does. Events in an Active, Object-Oriented Database System . Dr. Kovac, November 1994.
All approaches are sequential.
Event detection is centralized. During runtime, the Active DBS receives atomic events and collects those in a timely ordered history. Events in an Active, Object-Oriented Database System . Ph.D. Thesis, University of Zurich, Switzerland, Verlag Dr. Kovac, 1995. Literature does only provide relatively few attempts for the subdivision of the semantics of complex events.