News Column

Findings from Yonsei University in the Area of Civil Engineering Reported

June 25, 2014

By a News Reporter-Staff News Editor at Journal of Engineering -- Research findings on Civil Engineering are discussed in a new report. According to news reporting from Seoul, South Korea, by VerticalNews journalists, research stated, "Most previous industry foundation classes (IFCs) servers were developed based on relational databases (RDBs), and many studies reported performance problems. This study developed the object-relational IFC (OR-IFC) server using the object-relational database (ORDB) approach to improve query performance by simplifying the mapping process of the inheritance structure and the aggregation concepts."

The news correspondents obtained a quote from the research from Yonsei University, "In addition to the OR-IFC server, a RDB-based IFC server was also developed using mapping rules on the same database-management system as that on which the OR-IFC server was implemented to compare the performance of the ORDB- and RDB-based systems. The performance of the OR-IFC server and the RDB-based IFC server was evaluated using the Benchmark of Universal or Complex Kwery Ynterfaces benchmark method, and two test-case models with different sizes were used. The benchmark results clearly showed the query-performance improvement of the suggested OR approach."

According to the news reporters, the research concluded: "The OR-IFC server far outperformed the RDB-based server in every query related to object-oriented features such as inheritance, collection-type data, and referencing."

For more information on this research see: Query Performance of the IFC Model Server Using an Object-Relational Database Approach and a Traditional Relational Database Approach. Journal of Computing in Civil Engineering, 2014;28(2):210-222. Journal of Computing in Civil Engineering can be contacted at: Asce-Amer Soc Civil Engineers, 1801 Alexander Bell Dr, Reston, VA 20191-4400, USA. (American Society of Civil Engineers -; Journal of Computing in Civil Engineering -

Our news journalists report that additional information may be obtained by contacting G. Lee, Yonsei University, Dept. of Architectural Engn, Bldg Informat Grp, Seoul 120749, South Korea. Additional authors for this research include J. Jeong, J. Won, C. Cho, S.J. You, S. Ham and H. Kang.

Keywords for this news article include: Asia, Seoul, South Korea, Civil Engineering

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Source: Journal of Engineering

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