摘要
知识对象模型是面向对象知识库管理系统的基础。本文主要介绍了我们开发的SMU -KBMS系统的知识对象模型。该模型的设计参照了OMG和ODMG标准 ,支持对象和文字、类及其属性、方法和关系、外延和多重继承等概念。本文还介绍了SMU -KMBS系统提供的系统定义类。系统定义类作为整个知识库的核心 ,实现了知识对象模型语义。用户可在系统定义类基础上建立自己的类。
The Knowledge Object Model is the base of the object-oriented knowledge base management system.In this paper,the author introduces the knowledge object model of SMU-KBMS which was developed by her and her colleagues.Referring to the OMG and ODMG standard,the model includes the OO concepts,such as Objects,Literals,Attributes,Methods,Relationships,Extents and Multi-inheritance,etc..In addition,a group of system-defined classes provided by SMU-KBMS are discussed.As the core of the whole knowledge base,the system-defined classes serve as the basis on which users can define their own classes.
出处
《上海海运学院学报》
2000年第1期53-59,共7页
Journal of Shanghai Maritime University
关键词
面向对象
知识库管理系统
知识对象模型
the oriented knowledge base management system,the knowledge object model,system-defined class,class hierarchy
