对于一些领域——例如事件驱动的实时系统，和某种程度上的GUI构建器和J2EE——这种真正的MDD已经存在。

For some domains — such as event-driven realtime systems and to some extent GUI builders and J2EE — this type of true MDD already exists.

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设计能够对实时更改和事件作出及时响应的有效事件驱动软件系统是一项复杂工作。

Designing an effective event-driven software system that can respond to real-time changes and events in a timely manner is a complex task.

youdao

一般图形语言运行是动态纯数据流驱动的，在占用系统资源和事件实时响应上都有缺陷。

But the general graphic language is run and driven by a dynamic pure dataflow which USES up systematic resource and limits the real time performance.

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