This paper adopts frame meta-model to manage the hot-spots, classify the hot-spots into four classes-data hot-spots, function hot-spots,interface hot-spots and business hot-spots, which insures the expansibility of the components.
在平台构件的设计中采用框架元模型对扩展点进行的分类,从数据扩展点、功能扩展点、界面扩展点、业务扩展点四个方面对构件的接口进行管理,确保了构件具有满足需求的扩展性能。
参考来源 - 基于UML、构件技术的DPIDS的研究与实现·2,447,543篇论文数据，部分数据来源于NoteExpress
UML是一种标准的建模语言，框架元模型是一种对应用框架进行建模的方法。
UML is a standard modeling language. Framework Meta-Model is a modeling method for application framework.
SDO还提供了一个元数据api，允许应用程序、工具和框架对数据图形的数据模型进行自检。
SDO also provides a metadata API, which allows applications, tools, and frameworks to introspect the data model for a data graph.
框架查询两个元数据源：活动记录模型和每个模型对象的定制元数据文件。
The framework queries two sources of metadata: the Active Record model and a custom metadata file for each model object.
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