对象管理系统中的概念模式框架

【摘要】 The paper discusses an important concept in the field of data bases,that is conceptualschema framework.First,the paper defines the concept of framework,and discusses two key terms:an universe of discourse(UOD)and a conceptual schema(CS).Then,we classify the instancesand objects,define a paradigm describing the UOD and CS,and arrive at the conceptual schemaframework(CSF).Finally,the paper discusses some problems of modeling paradigm and implemen-tation paradigm.And the paper is closed out by discussing some applications of this framework.更多还原

【Abstract】 The paper discusses an important concept in the field of data bases,that is conceptual schema framework. First,the paper defines the concept of framework,and discusses two key terms ’ an universe of discourse(UOD)and a conceptual schema(CS). Then,we classify the instances and objects,define a paradigm describing the UOD and CS,and arrive at the conceptual schema framework (CSF). Finally,the paper discusses some problems of modeling paradigm and implementation paradigm. And the paper is closed out by discussing some applications of this framework.更多还原