In this paper, a new multimedia data model, namely object-relation hypermedia data model (O-RHDM) which is an advanced and effective multimedia data model is proposed and designed based on the extension and integration of non first normal form (NF^2) multimedia data model. Its principle, mathematical description, algebra operation, organization method and store model are also discussed. And its specific application example in the multimedia spatial data management is given combining with the Hainan multimedia touring information system.
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