Rules for Making Sense of Events: Design Issues for High-Level Event Query and Reasoning Languages

Events play an essential role in business processes and some forms of business rules. Often they require detection of complex events, that is, events or situations that cannot be inferred from looking only at single events but that manifest themselves in certain combinations of several events. This entails a natural need for high-level query and reasoning languages for complex events. This position paper explores issues related to the design of such languages.