EMF提供了持久性、一个有效的反射类属对象操纵api和一个变更通知框架。

EMF provides persistence, a very efficient reflective generic object manipulation API, and a change-notification framework.

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单独定义类，以便从某框架继承类，而该框架受到单一的类属性限制。

Classes are defined solely to inherit from some framework, where that framework is narrowed by a single class attribute.

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最后文章从“框架”、“类属”和“关系”三个层面的形式操作对两座分别按照柱式和法式标准制作的建筑进行剖析。

In the end, two building that follow the two principles respectively are to be anatomized, follow three levels of formal operation—taxis, genera and symmetry.

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