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Open Source SOA by Jeff Davis

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Chapter 8. Complex events using Esper

The technologies we've covered so far have dealt with the topics of creating reusable services (SCA), and in turn, how they can be woven together to create complex business processes (BPM). In this chapter, we'll shift gears a bit and look at how we can tap into these services and orchestrations to provide deep insights into the operational aspects of your enterprise. This is accomplished through event stream processing (ESP), sometimes also known as complex event processing (CEP). According to the CEP Interest web site (a site devoted to covering this technology), CEP is defined as

...software technology that enables applications to monitor multiple streams of event data, analyze them in terms of key performance ...

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