.1:25 Collaborative Map Data Results Of The Quality Of Impact Factors And Inspection Methods

With the spreading and application of GIS in every walk of life, spatial database becomes larger and larger and data quality receives more focus from people. Data quality affects the correctness and reliability of the application, analysis and decision of GIS directly. So it becomes an important question to study how to control data quality and how to inspect and evaluate data quality in mapping digital information project.In recent years all the mapping armies are producing 1 : 250,000 joint operation maps of the whole country. It is well known that 1 : 250,000 joint operation maps are maps of unit battles of all the armies. They are the main maps for commanders to research the position of battlefield and lay a battle course. They have great value in military affairs, and become the necessary tool in national defence modernization construction and battle training of the army. They have become the important resource of modern military mapping guarantee. During the course of joint operation maps' producing, various factors may affect the quality of data, accordingly affect the correctness and reliability of the application, analysis and decision of GIS. So it is especially exigent to study the precision analysis, quality control and inspect method of final data with the producing of 1 : 250,000 joint operation mapsThis paper gives out thorough study and discussion according to the character and quality control of 1 : 250,000 joint operation maps from theory to practice, the main content includes:1. Analyzing the background and meaning of data quality control, also promoting the content that should be included; Introducing the purpose and meaning of the inspection of 1 : 250,000 joint operation maps.2. Introducing the main character and producing process of 1 : 250,000 joint operation maps. The function of 1 : 250,000 Joint Operation Maps' Digital Cartography System.3. Analyzing the main factors that affect data quality thoroughly from four aspects. They are producing condition, producing datum, working reference map and the working and inspecting personnel.4. Introducing the meaning, character and process of inspecting the producing project quality along with the character of 1 : 250,000 joint operation maps. Summarizing the inspecting content and method aiming at 1 : 250,000 joint operation maps.5. Designing and implementing the inspecting software of 1 : 250,000 joint operation maps and analyzing its design principle and main function. Introducing the process and technique of this software. The inspecting function that adapts to 1 : 250,000joint operation maps is also introduced in this paper besides the main function a inspecting software should include. In addition error statistic and quality evaluate are also realized in this software so that the producing department can easily find the problem in producing and direct the future work well.