Complex event processing: Difference between revisions

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'''Complex Event Processing''', or CEP, is a technology for building and managing event-driven information systems. CEP is alsoprimary knowna asset [[Eventof Streamprogramming Processinglanguage (ESP)]].constructs CEPthat dealsdeal with the task of processing multiple streams of event data with the goal of identifying the meaningful events within those streams. CEP employs techniques such as detection of complex patterns of many events, event correlation and abstraction, event hierarchies, and relationships between events such as causality, membership, and timing, and event-driven processes.

CEP enables applications such as algorithmic trading in financial services, [[RFID]] event processing applications, fraud detection, and ___location-based services in telecomunications.

==A Conceptual Description of CEP==

Examples of events include church bells ringing, the appearance of a man in a tuxedo or morning suit, a girl in a flowing white gown and rice flying through the air. A complex event is what one infers from the simple events: a wedding is happening. CEP is a programming language that helps discover complex, inferred events by analysing and correlating other events: the bells, the man and girl in wedding gear and the rice flying through the air.

==Products==

The first commercial productsimplementations forof CEP were created by [http://www.apama.com Apama] and [http://www.ispheres.com iSpheres] in 1998. Streaming event databases have also emerged in the same time frame, including [[ObjectStore]], [http://www.vhayu.com/ Vhayu] and [http://www.kx.com KDB]. In 2005, [http://www.streambase.com/ StreamBase] released a "stream processing engine," or CEP, engine.

==See also==

* [[Event Stream Processing (ESP)]] ESP is the general class of technologies that includes CEP that process streams of data

* [[Real-time computing]] CEP systems are typically real-time systems

* [[RFID]] Radio Frequency Identification, or RFID, requires CEP