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Event Processing Agent

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Event processing component; Event processing mediator


A software module and a node in the event processing network that process events [2].

Key Points

An event processing agent [3] is a node in the event processing network that receives one or more events as input, processes them, and creates one or more events as output. There are various types of event processing agents [4]:

  1. 1.

    Filter agent: receives a single event and decides based on a predicate expression whether to route this event further or not (in this case it is a terminal node for this specific event instance).

  2. 2.

    Validation agent: receives a single event and a predicate expression that serves as an integrity constraint for this event. If the integrity constraint is violated may act as a filter (reject the event), may transform the event, or may orchestrate additional actions in an event sink.

  3. 3.

    Transformation agent: receives a single event and transforms this event to another event format.



  • Single Event
  • Multiple Event
  • Terminal Node
  • Event Processing
  • Integrity Constraint

These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Recommended Reading

  1. Luckham D. The power of events. Boston: Addison-Wesley; 2002.

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  2. Luckham D, Schulte R. editors. EPTS event processing glossary version 1.1.

  3. Loke SW, Padovitz A, Zaslavsky A. Context-based addressing: the concept and an implementation for large-scale mobile agent systems using publish-subscribe event notification. In: Proceedings of the 4th International Conference on Distributed Applications and Interoperable Systems; 2003. p. 274–84.

    Google Scholar 

  4. Sharon G, Etzion O. Event processing network: model and implementation. IBM Syst J. 2008;47(2):321–34.

    CrossRef  Google Scholar 

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Correspondence to Opher Etzion .

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© 2016 Springer Science+Business Media New York

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Etzion, O. (2016). Event Processing Agent. In: Liu, L., Özsu, M. (eds) Encyclopedia of Database Systems. Springer, New York, NY.

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  • Publisher Name: Springer, New York, NY

  • Online ISBN: 978-1-4899-7993-3

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