这包括确定和了解信息语义，如数据模型元素的含义以及结构信息等。
This includes identifying and understanding the information semantics, such as the meaning of the data model elements as well as structural information.
值得注意的是，根据术语的不同，物理结构可能不是必需收集的信息，可以以后在开发数据模型时再确定。
It is worth noting that, depending on the term, the physical structure may not be a mandatory aspect to collect and may be defined later or in the specification phase as data models are developed.
一个圆柱体外壳的曲度变形情况受到其本身的结构限制和不确定的外力影响，一般可以通过数据模型方程序测算出它的结果。
Cylinder buckling is governed by imperfections in a structure and uncertainties in the loading of weight, and mathematical models can predict this behavior.
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