Government Electronic Document Metadata Management And Its Standard Build

With all the development of e-government, government e-documents have become a major tool and a true record. The management of government e-document becomes an important component of building of e-government. But the management situation of government e-document is not optimistic at present, the authenticity, integrity and accessibility of e-documents can not be protected, the significant value of government e-documents loses.Metadata technology can solve this problem, which has played a tremendous role in the description, confirmed retrieval, resource management, resource protection and long-term preservation of government e-document. How to apply metadata in the field of government e-documents? It needs to examine the operating mechanism of government e-document metadata in management system, and the government e-document metadata standard construction for China; the relevant issues were discussed by the paper. Firstly, The paper introduces the basic theory of metadata based on the management of government e-document, and analyzes the concepts, characteristics, classification stated of government e-document and metadata, it note the application of metadata through government e-documents' whole life cycle.Next, through the display of a metadata description example, the paper leads to XML and RDF concept; On the basis of the basic concepts of Metadata, the model program of the collection and storage of the government e-document metadata is proposed by the paper, the collection methods of all kinds of media files metadata are summarized, then several metadata storage modes at present are analysised, with the government e-document metadata status, a hybrid memory of thinking, that the mixed storage strategy of file system and relational database, is proposed; Corresponding to the storage model, next the corresponding retrieval model is put forward, the structural design consistent with the storage model, embodying the "storage service to search", and the core modules of this model -- Z39.50 agreement system is analysised, and when the Z39.50 inquiries converter is designed, "requests for information about the conversion," and "results set management" is put forward with own ideas. Then inquiries of background metadata are discussed; finally, the paper researches the construction of our government e-document metadata standards, and summarizes construction principles, construction steps, finaly, our government e-document metadata standard building program is proposed.