资源与环境信息系统中模型方法元数据及其集成

资源与环境信息系统中数据的元数据标准业已产生 ,并在数据的组织与管理中发挥重要作用 ;但对于数据使用十分重要的模型方法元数据尚未有完整的描述 ,难以对现有的数学模型与方法进行查询、检索 ,从而限制了应用 ;通过对资源环境信息系统进行研究 ,提出元数据应包括数据元数据 (狭义元数据 )、模型元数据与方法元数据 ,提出并分析了模型方法元数据的概念与内容 ,提出了一套适用于资源环境系统的元数据库结构 ,以实现对模型与方法的有效管理 ;最后提出模型方法元数据同资源环境信息系统的集成方法 ,及其在该系统中的应用和发展方向 ;并得出基于元数据来实现模型和方法的集成管理与共享是切实可行的。

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.