Research and Development of a Database Work Bench with Dynamic Knowledge Management

随着数据库应用的不断扩大，通过在相应的领域添加合适的功能来开发更高层次的数据库管理系统的研究已经成为热门。本研究以一台高性能的微型计算机为数据库工作平台，开发了一个学术信息智能处理系统。本研究的主要成果如下。1根据合作研究者的以下研究领域考察学术信息处理设施。数据库(Kambayashi、Yoshikawa、Konishi和Kojima)、算法(Imai)、逻辑电路(Iwama)、智能信息处理(Tanaka、Takagi)和并发处理(Saisho)。2.在上述研究的基础上，研究了智能数据库工作平台所需的功能，并讨论了其实现方法。调查和讨论的结果见第3和4.3节。3.提出了一个高层设计数据模型。该模型可以处理数据的层次和历史、共享操作等。设计了一个包含逻辑电路图、程序等的逻辑电路设计数据库。4.提出了一种基于面向对象模型的模型，概括了对象的层次结构。阐明对象集的层次结构和层次结构上操作的计算复杂性。5.实现了数据库工作台的基本功能，并通过对实际数据的处理对其功能进行了测试。工作台的数据库系统是dBASE III，数据是1980年以来在主要期刊和论文集上发表的数据库的参考书目。研究会议每年在九州大学举行两次，总共四次。

As application of databases is expanding, researches that develop higher level database management systems by adding suitable function to corresponding fields, have become popular. In this research we develop a system for intelligent processing of academic information, by using a high functional microcomputer as a database workbench. The main results of this research are described as follows. 1 Investigate academic information processing facility according to the following research fields of the co-researchers. Databases (Kambayashi, Yoshikawa, Konishi, and Kojima), algorithms (Imai), logic circuits (Iwama), intelligent information processing (Tanaka, Takagi), and concurrency processing (Saisho). 2. From the above research, investigate necessary functions in the intelligent database workbench, and discuss the implementation methods. The results of the investigation and the discussion are described in 3 and 4. 3. Propose a high level design data model. This model can handle hierarchy and history of data, shared operation, etc. We designed a logic circuit design database which contains logic circuit diagrams, programs, etc. 4. Propose a model based on the object-oriented model and generalize hierarchical structures of objects. Clarify hierarchical structures of object sets and computational complexity of operations on the hierarchical structures. 5. Implement basic functions of the database workbench and experiment its functions by processing actual data. The database system of the workbench is dBASE III and the data are bibliography related to databases published in major journals and proceedings since 1980. Research meetings were held at Kyushu University twice a year, totally four times.