必须注意确保对象到关系数据库映射的正确性，理想情况下，应该将代码设计成在需求变更时所需的更改最小。
Proper care must be taken to ensure that object-relational database mappings are correct, and ideally the code should be designed to minimize the changes necessary when requirements change.
结论所设计的空间数据库总体框架结构合理，技术路线正确，可行性强。
ConclusionThe results indicate that the designed total frame in a database construction could be reasonable, the technique route could be right, the possibility could be strong.
所构造出的E - R模式是否满足数据库的设计要求，如何评价所构造的概念模型的正确性与完整性，仍然是个需要深入研究的问题。
Whether the E-R schema constructed caters for database requirement and how correctness and completeness of the conceptual schema is evaluated remains a problem needed for further research.
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