Because LDMs tend to be more complete than business items, with more fields or properly normalized entities.

由于LDM 一般比业务项更加完整，具有更多字段或正确标准化的实体。

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If you simply push LDMs into process models without appropriate communication, the details might overwhelm business analysts.

如果未经恰当交流就将LDM推入流程模型中，那么业务分析师将会面对大量的信息。

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Business items could become a basis for defining the Logical Data Models (LDMs), if a LDM does not exist for that business domain.

如果某个业务域没有现成的LDM，那么可根据业务项定义逻辑数据模型(LDM)。

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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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If the application modeler doesn't understand LDMs, the application modelers might end up re-inventing the wheel and defining entities or attributes that are already in LDMs.

如果应用程序建模师不理解LDM，那么他们最后可能不得不从头开始重新定义LDM中已有的实体或属性。

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Because LDMs tend to be more complete than class models, if LDMs are pushed into class models without appropriate communication, the details might overwhelm application modelers.

由于LDM往往比类模型更完整，如果未经恰当交流就将LDM推入类模型，那么应用程序建模师就会面对大量的信息。

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Other IT artifacts, such as service models, message models, object models, and physical data models, can be traced to LDMs semantically and often are transformed directly from LDMs.

其他IT工件，如服务模型、消息模型、对象模型和物理数据模型，可在语义上追溯到LDM，并常常由LDM直接转换。

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Other IT artifacts, such as service models, message models, object models, and physical data models, can be traced to LDMs semantically and often are transformed directly from LDMs.

其他IT工件，如服务模型、消息模型、对象模型和物理数据模型，可在语义上追溯到LDM，并常常由LDM直接转换。

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