Define the data semantics through a business glossary.

通过业务术语表定义数据语义。

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Some semantics can be lost during the transformation from an LDM to a class model because LDMs hold richer data semantics (as in, primary keys) than class models.

在从LDM转换到类模型时，有些语义可能会丢失，因为LDM的数据语义比类模型更加丰富(例如主键)。

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Knows about differences in semantics and data types.

了解语义和数据类型方面的差异。

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