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adventures in complex event processing
Adventures In Complex Event Processing
posted by Anna Mar, February 12, 2011
Lights, music, white dress, tie, decorous room. What is it?
It is easy for humans - because our brains are well adapted to recognizing and interpreting events. But in the world of technology, complex event processing (CEP) is still a challenging and emerging field.
What is an Event?Events are changes. Tools called Event Monitors are used to detect changes in time, status, location, levels. Thresholds are set - changes that exceed these thresholds constitute events.
Another common scenario is that events are sent by applications or tools such as Business Process Management (BPM).
Ignoring the NoiseComplex event processing involves processing low level events, filtering out insignificant events and taking action for significant event combinations. (often in real time)
Real World ExampleConsider a tire monitoring system. If a drop in tire pressure is detected it must consider speed, temperature and time to determine if there is a serious loss of pressure. If there is serious pressure loss, action must be taken to warn the driver.
Powerful combination: BPM, CEP and SOAComplex event processing is often used to monitor business processes. Event handlers may use SOA services to handle high level events (event-driven SOA).
TechniquesComplex event processing techniques include:- event pattern detection
- event hierarchy modeling
- event relationship detection
- abstract event-driven processes
- event abstraction
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