Poor construction of the relational data model can lead to scalability issues. 不佳的關係數據模型結構可能導致可伸縮性問題。
Results from this model structure point to a significant role for Hukou restrictions in supporting inequality in China. 模型結構所給出的結果指出戶口制度在支撐中國的不平等上扮演了一個非常重要的角色。