Research on the Model and Method Metadata in Resources & Environment Information System and Theirs Integration

The metadata standard of data in resources and environment information system(REIS) has been created, and plays an important role in data's management and organization, but for the model and method metadata, which is very important to the usage of data, have not been described in details, thus there is very difficult to query and index for the existing mathematics model and methods, and limits its use. With the research to the REIS, put forward to the idea that the metadata should included metadata for data, metadata for model and metadata for method; it also put forward a set of metadata database architecture that is suit to the REIS in order to realize the efficient management of the model and method. At last, bring forward the method of integrating the model and method metadata with the REIS, and the application and development in this system. Finally it draw a conclusion that it is feasible to realize the integrating management and sharing based on the metadata.