模块化模式：分离界面和插件、服务定位、事件聚合、外观模式。

Modularity patterns: Separated Interface and Plug In, Service Locator, Event Aggregator, facade.

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支持两种类型的查询：事件解决方案查询（它们只返回事件）和回答解决方案查询（它们可以返回任何非事件数据或聚合的结果）。

The two kinds of queries that are supported are: event solution queries, which return only events and the answer solution queries, which can return any non-event data or aggregated results.

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在系统的简单事件处理阶段，可能需要对事件进行显示、筛选、聚合、标注或充实。

Events might be screened, filtered, aggregated, annotated, or augmented as part of the system's simple event processing phase.

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