The major contents of database are name and code of basic tourism resources, city and county name and code of Inner Mongolia, main class and second class of tourism resources, statistics value and data sources, etc.

3.3.3 Tourism resources information database
The system has respectively recorded the received person-times of visitor who came from Inner Mongolia autonomous region inside, Russia, the United States, Korea, Singapore, Thailand, Hong Kong, Macau, Taiwan, Japanese etc. from 1997 to 2001.This will provide the basis for confirming tour market position, grading tour market and expanding source market of Inner Mongolia.

3.4 Social information database
Social information database includes three parts which are social economic information database, natural environment information database and map database.

3.4.1 Social economic information database
Social economic information database mainly reflects every county’s quantity of population, level of science and technology, education status, gross national product, economic structure, national income, medical treatment condition, transportation and communication industry and other things related to tourism, ect. This database will offer radical information for tourism program and tourism resources management.

3.4.2 Natural environment information database
Natural environment information database mainly reflects the natural factors of tourism environment in Inner Mongolia, such as geology and physiognomy, weather and climate, hydrology, propagation and natural disaster, etc. This database will provide the rudimental natural environment information for tourism program and tourism industry development.

3.4.3 Map database
The basal map scale is 1:250,000. The map database is composed of city and county map, roads map, residents map, river system map and DEM map. We could establish three-dimension terrain model of Inner Mongolia by DEM map.

4. System structure and main function
Inner Mongolia Tourism Resources Management Information System takes ordinary computer as platform chinese version Windows9x/2000/me/xp as operating system, visual C++ 6.0 as developed tool.

The system is composed of a series of modules which are Input/output, information search and index, statistic, decision and evaluation, map-layer, database and resources management and three dimension module. Excepting input and output function, System has map-layer operation function, data operation and management, query and search of tourism information, statistic, resources management, showed and display of three-dimension terrain, etc.

The interface of system is made up of map window, control bar, shortcut tool and menu. Map window lies on left. Different maps are controlled by different map layers, which not only could be display on the same layer, but also could be display respectively.

4.1 Tourism resources management
The purpose of tourism resources management is to realize the fast query and search. IMTRMIS could fast query tourism resources and visually output, that contributes to share the tourism resources and automatic office. System utilizes different modules to comprehensive evaluate tourism resources. On the control window every basic tourism resources and tourism region have their related attribute information page, which are composed of resources summary, resources brief introduction and their pictures. Double click the menu of basic tourism resources or tourism region, there will hit corresponding information page.

4.2 Map layer operation
The system could quick organize and manage map layers and carry on various operations on them, such as map layer display/close, zoom in/out, intelligent zoom, attribute set, full screen manifestation, intelligent index, etc. At the same, user could change map color, edit legends, etc. This operation is very simple, convenient, fast and accurate.

4.3 Data management
Data operation includes inputting, saving, editing, management, analysis and output of attribute and spatial data. The system manages attribute database with relative database management module. While it manages spatial database in means of map-layers.