The Study On The Quality Evaluation Of Cadastral Database Under The Second Land Survey In Shan'xi Province

With GIS in all works of life promoted application, China and even international already have formulated certain spatial data products merit rating standards, in some content, there are lots of problems on establishing merit rating partial in the cadastral data. But, because of a variety of uncertainty about cadastral data in itself, collecting, processing and using, existing means and method that appraise to depend on experience and qualitative analysis, lack of accurate quantitative statistical analysis and calculation. Therefore, describing and evaluating on cadastral data overall and accurately can control cadastral data quality, offer the better service for cadastral.This thesis has on the basis of analyzing cadastral data quality level, the quality model characteristic of the data, various kinds of norms, detailed rules and regulations have studied and discussed the spatial data quality testing, technology, means and method to appraise, have conducted the research and discussed of the more comprehensive system from theory to practice. The main contend including:It outlined the basic concept, features and development of the spatial database and spatial data. Have explained the understanding of spatial data quality basic conception, and introduced spatial data quality content involved in a great deal of more domestic standards simply, moreover, discussed some thesis of quality evaluation, appraised kind of methods on spatial data quality evaluation and determined one method used by this research. Have expounded every indicator of spatial data quality evaluation, structured basic framework of spatial data quality evaluation preliminary, and basis of the second land survey program in Shan xi and practical situation of land and resources administration, formulated practical quality evaluation standard of cadastral database under the second land survey in Shan xi Province and explained every indicator of the standard minutely. Take the cadastral database under the second land survey in Yan chuan as the row, verified the quality evaluation standard of cadastral database under the second land survey in Shan xi Province, evaluated the database and attained the conclusion.