摘要: The data dictionary system is an important tool for supporting information resource management. It facilitates the management and control of data. This thesis will develop a relational model of a data dictionary and implement it o... 展开 The data dictionary system is an important tool for supporting information resource management. It facilitates the management and control of data. This thesis will develop a relational model of a data dictionary and implement it on the ORACLE relational data base management system. Then, this data dictionary model will be implemented using the logic-oriented Prolog language. The Prolog model of a data dictionary will demonstrate that logic programming can be used for relational data base applications and that it provides more powerful dictionary capabilities than the relational model. Keywords: Expert Systems. 收起