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Visual C++6.0 is selected as development tools while Access 2000 of Microsoft is used to build database, and the technology of ADO is adopted to achieve the connection between them. Though the secondary development of API function provided by SolidWorks, the query module is taken as a plug-in integrated in SolideWorks, which achieves the automatic query.

Performance Simulation for Global Navigation Satellite System (GNSS) that be used for performance simulation and evaluation analysis of the GNSS, is a part of the critical algorithm test and system index analysis for GNSS. In this article, the requirements of GNSS are analyzed firstly, and the characteristic of model portability for GNSS is studied, then the model integration framework based on Simulation Model Portability is proposed. The system architecture consists of model design, development, integrating, executing and analysis. Lastly, the regional performance of GALILEO Navigation Satellite System in China is tested and analyzed based on the integration framework.