The Urban Cadastral Data Base Building Methods And Application Of Quality Control Evaluation

Our core mission is to manage cadastral land management, and the use of modern technological means to achieve automated cadastral management has become today's trend.China's second national land survey also just ended, GIS technology in the cadastral management has been widely used. China's second national land survey also just ended,GIS technology in the cadastral management has been widely used. By this way, it gets rapid development. MapGIS cadastral management information system can meet the requirements of cadastral management and applied widely., but its user interface is cumbersome and difficult to operate. At the same time, the WalkCM software developed by the Zhejiang World Wide Technology company can solve the problem, its page simple to operate, level clearly and can transport data perfectly with MapGIS,which greatly simplifies the software to work in MapGIS Cadastral database and improves the efficiency of building the library.First, the paper analyzes the cadastral data(Including the construction of the foundation, cadastral data and the requirement)and development status of cadastral management at home and abroad, it selects the database software and database platform.Then, it analyzes the application of the software in the cadastral data and how to build database platform for data conversion.In building a urban cadastral database, there are some problems which in data quality control, so the paper proposes a number of data quality control methods, mostly surveys the collection data outside the industry, some of the process data storage before the data processing and data quality control after the data in the storage, based on the evaluation points and uses the weighted average defect model,the paper assesses the quality in the database results comprehensively.Finally, combined with the database project of Wenzhou City, Zhejiang Province Panqiao, using the above theory and technology, the paper describes the process of building a database of data, proposed some opinions and attention problems in the process of building a database, evaluates the quality of the final outcome in building a database.The practice has proved that: the WalkCM software is simple and efficient in the application of cadastral database, it should be promoted and continue to improve the value.