一种关系模式到模块化的XML Schema的映射方法

Based on relational schema vector model and XML schema tree model, an algorithm BTT to convert from Relational Schema to XML Schema was proposed. BTT mapping rules preserve the integrity information of structure, properties and constraint. The conversion sequence from bottom to top confirms the modules encapsulated and reused, makes the update to XML Schema can be finished in related module, greatly enhances the maintenance efficiency. The experimental results show that compared to the traditional nested XML Schema, the XML Schema converted by BTT has obvious advantage in the maintenance efficiency.