Metadata and new challenges

Metadata technologies and its standardizations have been developed in many fields such as library science, broadcasting, etc., and they are already in practical use. Content having metadata is easier to manage and discover resources than non-metadata contents. With the growth of the Internet, metadata has become a more important function in the efficient delivery of content to develop interoperability between each metadata set and associations with networks. We describe a few metadata-related activities. We also propose a metadata framework that will allow for the integration of metadata and networks.