An object-oriented database management system for computer-aided design of tall buildings |
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Authors: | J Liang T Y P Chang C M Chan |
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Affiliation: | (1) Institute of Computational Mathematics and Scientific/Engineering Computing, Chinese Academy of Science, P. R. China;(2) Department of Civil and Structural Engineering, The Hong Kong University of Science and Technology, Institute of Computational Mathematics, Clear Water Bay, Kowloon, Hong Kong |
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Abstract: | An effective database and database management system is the key to the success of an integrated approach to software engineering applications in general, and Computer-Aided Design (CAD) for structural applications in particular. Due to the inherent nature of CAD data such as dynamic modeling, a wide range of data types, large data volume, etc., the traditional database models, such as hierarchical, network and relational models, are unable to handle the aforementioned applications satisfactorily. An object-oriented data modeling is known to be the most effective approach. However, many of the commercial object-oriented databases are designed for information management, and they are inadequate for CAD application due to the different features of the object-hierarchy and varying data management objectives during the design cycles. This paper presents a hierarchical index-based object-oriented database management model for CAD applications. To deal with the object hierarchy encountered in CAD for the design of tall buildings, the proposed database consists of several salient features: a hierarchical object model, its related storage structure, a data dictionary, a class factory and an index system. The proposed database management model has been implemented into an integrated CAD system for design application of tall buildings. |
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Keywords: | Computer-aided design of buildings Database management system Hierarchical index Object-oriented model |
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