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

随着数据库应用的不断扩大，在相应的领域中增加相应的功能来开发更高层次的数据库管理系统的研究已成为热门。本课题以高性能微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调查学术信息处理设施。数据库（Kambayashi, Yoshikawa, Konishi, and Kojima），算法（Imai），逻辑电路（Iwama），智能信息处理（Tanaka, Takagi）和并发处理（Saisho）。2. 在此基础上，研究了智能数据库工作平台中所需要的功能，并讨论了实现方法。调查结果和讨论在第3章和第4章中描述。3. 提出一个高层次的设计数据模型。该模型可以处理数据的层次结构和历史、共享操作等。我们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。提出了一种基于面向对象模型的模型，并推广了对象的层次结构。澄清对象集的层次结构和层次结构上操作的计算复杂性。5. 实现数据库工作台的基本功能，并通过处理实际数据对其功能进行实验。工作台的数据库系统为dBASE III，数据为1980年以来各大期刊和论文集发表的数据库相关书目。研究会议每年在九州大学举行两次，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.