Research On The Theory Of Metadata Registry And The Designment And Development Of The Registry System

Metadata Registry(MR) is a mechanism to support many inter-operations of metadata. Such as the search, identification, integration, transform, reuse and detection of it. The development of MR can effectively promote the management, release and detection of metadata. Therefore, it is great sense for MR research to promote the development of metadata realm.The research about metadata registry of this thesis begins with the analysis of abroad and domestic papers, as well as consult to some existing Metadata Registries, which helps us to sufficiently comprehend the theory of MR based on metamodel. As a basic theory about MR, the theory provides the MR development direction. It is a ground standard about MR and data element, actually it demands high level of informationization and just applied in some developed country in this realm. Take into account of informationization level we must develop MR criterion based on the theory that is suitable for our country. The criterion contains MR items criterion and MR management criterion. The two criterions are suggested at the realm of the aeronautic, but they are not limited to it, and can be used as guildline for other realm.On the basis of the two criterions the data element management system is designed and deployed for the MR of data element and it's management, There are many new characteristics for the system, such as high-efficient, convenient, low-cost, and with great expansibility the system can adapt to new demands via a few modifications.At last, according to the development and application frame of metadata, the thesis attempts and discusses the application of metadata in the data resource of industry, Finally, describe the direction and prospects of MR.