摘要： 将模式融合分为模式映射、主键-外键融合和用户自定义的完整性融合3个部分。模式映射将关系模式或其他模式映射为对象代理模式类，主键-外键映射采用新的模式融合算法，充分考虑对象代理模型的特点。提出了一个新的操作Merge来解决用户自定义的模式融合。该操作克服了其他模型的用户自定义模式限制难于融合的问题。在Smalltalk环境中实现了基于对象代理模型的模式融合系统，并给出应用实例。

关键词: Smalltalk, 对象代理模型, 模式融合

Abstract: This paper develops a structure for schema merging that consists of schema mapping, key-foreignkey merging and user-defined integrity merging. Schema mapping transforms relational schema or other schema into deputy schema class. The paper suggests a new algorithm for key-foreignkey merging that makes use of deputy mechanism, proposes a new operator merge for user-defined integrity in which object deputy model makes schema transformation easier. And it implements the schema merging system based on object deputy model in Smalltalk environment, with some application examples.

Key words: Smalltalk, object deputy model, schema merging

中图分类号: 

• TP391