RDF model and relational metadata

In this paper we propose a new metadata type "relational metadata" that contains the relational information for retrieving Web contents. It is based on XML and using the ER (entity-relationship) model of the relational database (RDBMS). Relational metadata is compatible with resource description framework (RDF) through a translator program that can convert relational metadata to RDF. The goal of relational metadata is to provide the Web content creators with easy control over metadata and with automatic RDB integration. Using relational metadata, the user can search target information with RDB easily and efficiently. Its retrieval functions are easily customized according to the personal profile.