Study and Application of Network-based Integrated Management Model of Resources and Environment Metadata

There are some difficulties in sharing of resource and environmental information because of their multi-scope, multi-species, multi-significance and large data. Metadata is an important and efficient means for solving the problem. This paper has analyzed the current managing models of metadata of resources and environment. Subsequently, it discusses constructing a network-based, open and extendable metadata database management system and carrying out a management model of trinity of data users, metadata and datasets. Finally, a metadata management software MMT-1 has been completed by some advanced developing means and successfully applied.