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按照电信管理网（ＴＭＮ）的管理信息模型建模思想，将智能网中的用户业务数据抽象成被管理对象类，采用ＧＤＭＯ描述方法为用户业务数据建立面向对象的语义数据模型．在对用户业务数据进行描述时，引入了新的描述符来描述业务数据上可施加的操作，并引入了一阶谓词逻辑来描述用户业务数据的结构及数据的完整性约束
According to TMN model of management information modeling, the user business data in intelligent network is abstracted into managed object class, and the object-oriented semantic data model is built for user business data using GDMO description method. In describing the user business data, a new descriptor is introduced to describe the operations that can be imposed on business data, and a first-order predicate logic is introduced to describe the structure of user business data and the data integrity constraints