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CES: Um Mecanismo Genérico de Composição de Eventos para Sistemas Sensíveis ao Contexto

机译:CES:情境敏感系统的通用事件组成机制

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摘要

Pervasive applications use context provision middleware support as infrastructures to provide context information. Typically, those applications use communication publish/subscribe to eliminate the direct coupling between components and to allow the selective information dissemination based in the interests of the communicating elements. The use of composite events mechanisms together with such middlewares to aggregate individual low level events, originating from of heterogeneous sources, in high level context information relevant for the application.CES (Composite Event System) is a composite events mechanism that works simultaneously in cooperation with several context provision middlewares. With that integration, applications use CES to subscribe to composite events and CES, in turn, subscribes to the primitive events in the appropriate underlying middlewares and notifies the applications when the composed events happen. Furthermore, CES offers a language with a group of operators for the definition of composite events that also allows context information sharing
机译:普及型应用程序使用上下文提供中间件支持作为基础结构来提供上下文信息。通常,那些应用程序使用通信发布/订阅来消除组件之间的直接耦合,并允许基于通信元素的利益进行选择性信息分发。组合事件机制与此类中间件的结合使用可在与应用程序相关的高级上下文信息中聚合源自异构源的各个低级事件。CES(复合事件系统)是一种组合事件机制,可与几种上下文提供中间件。通过这种集成,应用程序使用CES订阅复合事件,然后CES订阅相应的基础中间件中的原始事件,并在组合事件发生时通知应用程序。此外,CES提供了一种具有一组运算符的语言来定义复合事件,还允许上下文信息共享

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