Abstract
Current Complex Event Processing (CEP) systems require considerable technical efforts for event pattern definition and event stream implementation. In this paper, we present a service oriented framework that provides a user centric way to define complex event patterns and implement the patterns automatically. We extend the Business Event Modeling Notations (BEMN) to allow the business users to describe their complex events with graphical notations. Member event specifications in such event patterns refer to services that deliver them. We then transform the event pattern into a stream query, subscribe to relevant services and obtain event streams required. Finally, we evaluate the query over primitive event streams to obtain results as complex events.
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