The Application And Research Of Flex And GIS Technology In Urban Land Use Tax

The revenue sources of urban land use tax which base's authenticity and accuracy have been the final goal of Tax Collection and Administration Department is relatively stable.With electronic map,using GIS and other modern information technologys,we can implement comparison and assessment management on the land information which is mastered by the tax departments and the land surveying and mapping departments through the information,such as taxpayer identification codes and land serial numbers…etc,thus realizing the true sense of the management~No Gap, Full coverage".With this opportunity,the Qingdao Geographical Information Tax Administration System project whose realization is based on the customization and extension of the framework-Flex Viewer starts to implement.The Flex Viewer introduced by ESRI is a basic framework to efficiently develop for WebGIS, it can help to mask the underlying complex operation, such as the communication mechanism. The communication of this framework and server is based on Web Service. On the server side, publish out your services, such as map service, simply call the operations in the front. In view of this, developers can focus more on function modules, greatly improving the development efficiency.The Qingdao Geographical Information Tax Administration System adopts multi-layer software architecture, it is divided into four layers from the bottom to the top floor, in order:the data layer, service layer, application layer and display layer. The system provides relatively independent architectures which are from the data layer to the service layer or from the service layer to the application layer and or from the application layer to the display layer by way of multi-layer architectures for all types of map-related services, thus obtaining a good system function,scalability and better stability and robustness. System has been test run, from the results, the system improves efficiency, and standardize the work processes, reaching the target of "tax controlled by land".