This is the sort of information that should be captured by your conceptual model, which in the object world is modeled via a UML class model.
这是应该由概念性模型捕捉的一种信息，在对象世界中，它是通过UM L类模型建模的。
The classes generated for a particular conceptual model derive from base classes that provide Object Services for materializing entities as objects and for tracking and saving changes.
这些类按照特定的概念模型派生自可以将实体物化成对象的支持对象服务的基类从而可以实现跟踪和保存变更。
Compared with several other data models used in early and recent GIS, the author gives his own idea of what is a geographical space, and then puts forward a new object-oriented conceptual data model.
本文在分析和总结了早期和近期GIS几种数据模型的优缺点的基础上，对地理空间进行了重新理解，给出了一个面向对象的概念数据模型。
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