UML lacks, however, the sufficient management of behavior code in database, makes against tracing and extension, when using UML to design data model.

然而使用UML进行数据模型设计时，对数据库中的行为代码却缺乏有效的管理，不利于对其跟踪、扩展。

youdao

Starting with release 3.0, Engineering Collaboration MCAD connectors can work with the PLM Design data model only. This chapter descriptions using ec with the Design data model.

从3.0版本开始，工程协同MCAD连接器只能使用PLM设计数据模型。这章只描述用EC操作设计对象模型。

youdao

For instance, if you convert paper forms, you want to use a form-centric method by which you first reproduce the look of the form, and then design a data model to match.

例如，如果需要基于现有书面形式的表单开始设计，您不妨使用以表单为中心的方法，具体做法一般是首先复制现有表单的外观，然后设计一个数据模型与之相匹配。

youdao

As with any statistical analysis, the results are only as good as the model, the experimental design and the data.

ECONOMIST: Climate change (I)