When the behavior of an event-driven application depends upon the order in which events occur, its programming can become very tangled, and consequently difficult to debug and modify.

当事件驱动的应用程序的行为取决于事件发生的顺序时，其编程就会变得非常复杂，也十分难以调试和修改。

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OOAD gives us classes and objects on the application level, while BPM has event-driven process models.

OOAD为我们提供了应用程序层上的类和对象，而BPM具有事件驱动的流程模型。

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One of our clients uses MaintainJ on a Swing application with a lot of event driven logic, which would be very difficult to understand by plain code reading.

我们的一位客户在一个Swing应用程序上使用MaintainJ，其中带有大量事件驱动逻辑，仅仅通过阅读源代码很难理解那些逻辑。

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