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Distributed metadata management is an efficient way to address the huge data of mineral information resources, which are usually distributed stored. In this paper, existing related metadata standards of mineral resource are firstly explored, based on which three typical kinds of metadata management mode, centralized metadata management mode, distributed metadata management mode and shared metadata management mode are summarized and evaluated. Considering the advantages and disadvantages of the three modes and the features of management, a framework for distributed metadata management of mineral information resources with access control is proposed to provide data management and share ability with access control. In this framework, a mineral information metadata table based on the standard published by China Geological Survey is defined to describe the metadata of distributed mineral information resources. The framework provides metadata and catalogue management abilities to fulfill data share and access control between different departments. The detailed design of the management framework is also given in this paper. |
