Driven by the meta data characteristics of each category, tools will be used to access and prepare the data within each category.

受各个类别元数据特性的驱动，工具将用于访问和准备各个类别中的数据。

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The con: If you like metadata driven applications (and already struggled with ASP.NET databinding because there is no way to attach meta data)… well, prepare for some further loss of information.

缺点：如果你喜欢元数据驱动的应用，并且已经被ASP.NET的数据绑定所困扰时（因为没有其他的方法可以附上元数据）……那么，就准备着在将来丢失信息吧。

youdao

Modeling Product as a meta-class makes our model more flexible in that adding additional Products to the Catalog is purely a data-driven process and doesn't impact the class model.

将其他Product添加到Catalog完全是一个数据驱动过程，而且不会对类模型产生影响，因此将Product建模为一个元类会使我们的模型更加灵活。

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