另外，SchemaServer描述了结构性模型，用来以信息类的层次结构形式存储和交换信息。

Additionally, SchemaServer describes the structural models used to store and exchange information as a hierarchy of information classes.

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它是SimpleRDB的通用模型的第一个类实体，但是在UML 2.0中没有它的对等体。这就是关联的签名没有与uml元素相关的形式参数的原因。

It is a first class entity in the meta-model of SimpleRDB, but it has no equivalent in UML 2.0. That is why the signature of the relation has no formal parameter that relates a UML element.

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数据分类和预测是两种数据分析形式，可以用于提取描述重要数据类或预测未来的数据趋势模型。

Data classification and prediction is the two forms of data analysis, can be used to extract important data to describe or predict the future trend of the data model.

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