【摘要】 介绍了ＰＯＳＣ软件集成平台中Ｅｐｉｃｅｎｔｒｅ逻辑数据模型的关系实现原理，以及在Ｅｐｉｃｅｎｔｒｅ逻辑数据模型关系实现过程中采用的一些基本原理和方法；分析了在确保关系实现对Ｅｐｉｃｅｎｔｒｅ计算环境的可能性、应用程序的独立性和可移植性、应用程序的互操作性、数据的可移植性支持的前提下，Ｅｐｉｃｅｎｔｒｅ模型的关系实现机制，以及Ｅｐｉｃｅｎｔｒｅ模型投影工具的运行过程；建立了应用数据模型的关系投影方法更多还原

【Abstract】 The relational implementation principle of Epicentre logical data model in POSC software integrate platform is discussed. Some basic principles and methods are also given, which must be considered during the relational implementation of Epicentre logical data model. By the precondition of ensuring that the relational implementation can provide the possibility of computation environment of Epicentre, the application isolation and portability, the application interoperalility and the data portability, we established the method of relational implementation of application data model through analysis of the mechanism of Epicentre model relational implementation and of the procedure of Epicentre model projection tool.更多还原