Research on Custom-built Generation of GIS Application Software Based on Metadata

摘要：

In order to decrease the workload of code development,and to support the reuse of common functions and customization of personal functions,the paper proposes custom-built generation platform of GIS application software based on metadata.The platform divides the GIS application software into three parts:user interface,business logic and functional model.The three parts are loosely coupled based on metadata.The design of multi-layers loosely coupling indicates the system flexibility.It allows users to customize user interface,function and data to meet their personal demands.The platform locates resources rapidly based on metadata,and then customizes the GIS application software including basic GIS functions,personal user interface and flexible data.For validating the platform,the urban geologic survey information system is generated by the platform as a test.The result shows that the platform achieves the hot-plug of extensional components by modifying metadata and provides good reuse of GIS functions.Further more,it hides the diversity of GIS components.It simplifies the development of GIS application software and improves the efficiency of development.

关键词： metadata GIS application software dynamic assembly custom-built development system flexibility component hot-plug loosely coupling

作者: Lu Hong Fu Zhang Zihui Zhang Anbo Li

作者单位: Key Laboratory of Virtual Geographic Environment,Ministry of Education,Nanjing Normal University,Nanjing,China 210046

会议类型: 国际会议

会议名称: 第16届国际地理信息科学与技术大会(16th International Conference on GeoInformatics and the Joint Conference)

会议地点: 广州

会议语种:英文

在线出版日期: 2008-06-28（万方平台首次上网日期，不代表论文的发表时间）