Modern event processing is fast becoming a foundation of today’s information society. This is a technology that emerged in the late 1990s, but event processing is nothing new. For sixty years it has been, and still is, a technological basis for discrete event simulation, weather simulation and forecasting, networks and the internet, and all manner of information gathering and communications—just to name a few areas. In the 1990s, there were one or two university research projects dedicated to developing new principles of event processing, called complex event processing (CEP). After 2000, CEP began to appear in commercial IT applications, and more recently, starting around 2006, the number of event processing applications and products ...

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