摘要
An approach to implementing the multimedia database system NHMDB based on NF2(Non-First-Normal-Form) data model is presented. This approach is easily implemented because NF2 structure can efficiently store various media data such as formatted data, text,graphics, image and voice. The main idea is to expand conceptual schema to maintain the consistency of tbreelevel schema in system NHMDB. We developed, implemented and experimented the storage structure and the multimedia data representation by an object identifier.implementation techniques are also discussed.
