本文讨论了事件日志、参数上下文，然后在最近环境参数上下文的语义条件下给出了一种高效的事件监测模型事件树模型。
This paper discusses events log, the semantics of parameter contexts, then presents a event detecting model-event tree model efficiently under the parameter of recent context.
但是这种树结构缺乏任何类型的事件处理模型，因此不适合高交互性的树窗口部件的要求。
But these tree structures lack any kind of event handling model and therefore can't meet the requirements of a highly interactive tree widget.
故障树模型是导致系统失效的基本事件之间逻辑关系的图形表示，应用于系统失效模型的定性和定量分析。
Fault tree model is the graphical expression of connection of basic events which result in system fault, and used in qualitative and quantitative analysis of system fault model.
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