A General Model for Event Specification in Active Database Management Systems (1997) [3 citations — 2 self]
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Abstract:
Active database systems have been developed for applications that need an automatic reaction in response to certain conditions being satisfied or certain events occurring. Events can be simple in nature or complex. Complex events can be built from simpler ones with the help of event operators of an event algebra. While numerous papers propose extensions of the set of event operators only very few address the foundations of the semantics of complex events. For this reason most proposals mix different concepts (aspects) of complex events and offer event operators as the only means to control their semantics. This leads to peculiarities as aspects are not handled uniformly by operators and have other semantics than expected or operators of different algebras which, on the first glance, look the same may have different semantics. We have developed a formal meta model for complex events. It splits up the semantics of complex events into elementary, essentially independent dimensions. The resulting elementary building blocks can be used to define flexible and extensible event algebras. Moreover, our meta model helps to detect and eliminate peculiarities like the ones discussed above. 1
Citations
| 135 | Composite Events for Active Databases: Semantics, Contexts and Detection – Chakravarthy, Krishnaprasad, et al. - 1994 |
| 126 | Composite event specification in active databases: Model & implementation – Gehani, Jagadish, et al. - 1992 |
| 14 | Events in an active object-oriented database – GATZIU, K - 1994 |
| 12 | Event Detection for Supporting Active Capability in an OODBMS: Semantics, Architecture, and Implementation – Krishnaprasad - 1994 |
| 4 | A Formal Metamodel for the Definition of the Semantics of Complex Events – Zimmer - 1996 |
| 3 | A Uniform Model to Express the Behaviour of Rules with Different Semantics – Comai, Fraternali, et al. - 1995 |
| 2 | An Operational Semantics for the Activity Descpription Language ADL – Behrends - 1994 |
