An Extended Relational Data Model for Multimedia DBMSs |
| |
Authors: | G POLESE A PANNELLA G TORTORA |
| |
Affiliation: | Dipartimento di Matematica e Informatica, University of Salerno, Italyf1, f2, f3 |
| |
Abstract: | We have extended the canonical relational data model to enable the management of multimedia objects. In an attempt to provide a smooth paradigm shift to multimedia information system development, we have enhanced the relational data model framework with techniques for modeling, storing and manipulating multimedia data. In particular, we have provided a graphical conceptual model for structuring a multimedia document and mapping rules for translating it into an extended relational data schema. Extensions have regarded the management of foreign keys, active components, mechanisms for the management of spatial and temporal relations, and finally functions for handling multimedia presentations. As a consequence, we have also provided extensions to the SQL language to handle these new mechanisms. |
| |
Keywords: | multimedia document RDBMS SQL3 spatial relation temporal relation multimedia presentation content-based retrieval |
本文献已被 ScienceDirect 等数据库收录! |
|