Research on Object-Oriented Knowledge Base Management Technology for Improving Productivity and Competitiveness in Manufacturing

提出的研究是基于面向对象的 语义关联模型，该模型已在原型中使用 分布式数据管理系统的开发 支持国家的综合制造设施 标准局。 本研究旨在将该模型扩展到 允许用户定义操作和知识规则， 完整性和安全性约束、演绎规则和域 特定的专家规则，在对象类中定义， 实例. 因此，与对象相关联的知识规则是 与他们的数据集成，以便随时可以使用规则 当相关数据正在被处理时。 一种面向对象的高级知识操作语言 将被开发。 它允许用户指定复杂的 语义模式作为搜索上下文，并专注于 他们感兴趣的对象，而不必明确指定 查询中的遍历路径。 一种机制， 相关的基于规则的知识，同时处理交易中， 匹配-修改-执行循环。 拟议职能 数据库和推理组件的集成允许定制 查询优化，事务管理， 完整性和安全性控制以及并发控制 在知识库管理系统环境下。

The proposed research is based on an object-oriented semantic association model, which has been used in a prototype development of a distributed data administration system for supporting the integrated manufacturing facility of the National Bureau of Standards. This research aims to extend the model to allow user-defined operations and knowledge rules, which model integrity and security constraints, deductive rules, and domain specific expert rules, to be defined in object classes and instances. Thus, knowledge rules associated with objects are integrated with their data so that rules are readily available when associated data are being processed. A high-level object-oriented knowledge manipulation language will be developed. It allows the user to specify complex semantic patterns as search contexts and to concentrate on the objects of their interest without having to explicitly specify the traversal paths in queries. A mechanism for applying relevant rule-based knowledge while processing a transaction in a match-modify-execute cycle is proposed. The proposed functional integration of database and reasoning components allows tailoring of techniques such as query optimization, transaction management, integrity and security control, and concurrency control for use in the knowledge base management system environment.