Quantitative evaluations on the query modeling and system integrating cost of SQL/MDR

Dongwon Jeong, Young Gab Kim, Hoh Peter In

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


SQL/MDR is a metadata registry query language used to consistently exchange and share the data between distributed metadata registries. It is an extension of the international SQL and is familiar to most database builders and administrators. It provides many advantages such as simplicity of query language, ease of use, an independent description for distributed querying, low cost for adding new systems, simplicity of exchanging mechanism, and so on. The goal of this paper is to evaluate and show its merits quantitatively. To achieve this goal, we define simulation models to compare with an existing approach and then describe the evaluation results. In the quantitative evaluation results, the good points of SQL/MDR can be identified and known.

Original languageEnglish
Pages (from-to)367-375
Number of pages9
JournalETRI Journal
Issue number4
Publication statusPublished - 2005 Aug


  • Consistent access
  • Data element
  • Interoperability
  • Metadata registry
  • Quantitative evaluation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • General Computer Science
  • Electrical and Electronic Engineering


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