Abstract
Engineering application domains need database management systems to supply them with a good means of modeling, a high data access efficiency and a language interface with strong functionality. This paper presents a semantic hypergraph model based on relations, in order to express many—to—many relations among objects belonging to different semantic classes in engineering applications. A management mechanism expressed by the model and the basic data of engineering databases are managed in main memory. Especially, different objects are linked by different kinds of semantics defined by users, therefore the table swap, the record swap and some unnecessary examinations are reduced and the access efficiency of the engineering data is increased. C language interface that includes some generic and special functionality is proposed for closer connection with application programs.
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The project was a key scientific project of the 8th five-year plan of China (Project No. 85-708-02-03-08).
Gu Ning received his Ph.D. degree from Institute of Computing Technology, Chinese Academy of Sciences in 1995, and finished post-doctor research work in Fudan university in 1996. He is currently an Associate Professor in Computer Science Department of Fudan University. His research interests are engineering databases, object databases and CSCW.
Lin Zongkai graduated from Nanjing University in 1956. He is currently Academic Chairman, a Professor, and a supervisor of Ph.D. candidate of Institute of Computing Technology, Chinese Academy of Sciences. He is also a President of Chinese CAD & CG Society and a member of Council of Chinese Computer Federation. His research interests include engineering databases, multimedia databases, Chinese databases and CSCW.
Guo Yuchai graduated from Xiamen University in 1961. She is now a Professor and a supervisor of Ph.D. candidate of Institute of Computing Technology, Chinese Academy of Sciences. Her research interests are electronic CAD, engineering databases and multimedia techniques.
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Gu, N., Lin, Z. & Guo, Y. On model, memory management and interface in EDBMS/3. J. of Comput. Sci. & Technol. 13, 337–347 (1998). https://doi.org/10.1007/BF02946623
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DOI: https://doi.org/10.1007/BF02946623