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How do Event Processing, Event Stream Processing and Event-Driven Architecture relate to an ESB? Prashant explains in this blog entry and illustrates on an example of fraud detection.
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Event driven architecture in Open ESB is enabled by the Intelligent Event Processor (IEP) component.
IEP is a Complex Event Processing (CEP) and Event Stream Processing (ESP) engine and comes with rich set of operators and a nice set of tools to visually handle events. As it plugs into Open ESB it can take advantage of all the external connectivity capabilities to gather and act upon events.
An introduction workshop to IEP is available here
Also check out Serge's blog for further in depth discussions of IEP, CEP and CQL.
