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This paper presents a conceptual model of an event-processing network for expressing the event-based interactions and event-processing specifications among components. The model is based on event-driven architecture, a pattern promoting the production, detection, consumption, and reaction to events. The motivation is the lack of standardization in the areas of configuring and expressing the event-processing directives in event-driven systems. Some existing approaches are through Structured Query Language, script languages, and rule languages, and are executed by standalone software, messaging systems, or datastream management systems. This paper provides a step toward standardization through a conceptual model, making it possible to express event-processing intentions independent of the implementation models and executions. It is a unified model serving as a metamodel to these existing approaches.
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