Poor construction of the relational data model can lead to scalability issues. 不佳的关系数据模型结构可能导致可伸缩性问题。
As the proposed modeling system is object-oriented and modularized, the modeling architecture is reusable and integrated. 由于模型体系具有面向对象和组件化的特点,因此,模型结构具有很好的重用性和可集成性。