Quantitative Evaluations on the Query Modeling and System Integrating Cost of SQL/MDR

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