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Multimedia Tools and Applications

, Volume 7, Issue 1–2, pp 37–66 | Cite as

Conceptual Modeling and Querying in Multimedia Databases

  • Chitta Baral
  • Graciela Gonzalez
  • Tran Son
Article

Abstract

In this paper, we discuss some design principles that will aid in the design and querying of multimedia databases. We use an object-relational data model and argue that multimedia objects should normally have a special attribute called ‘core’ which stores the real object itself in contrast to the abstraction which is reflected in the rest of the attributes. We present an extension to the ER Diagram that takes advantage of the ‘core’ notion to facilitate design of multimedia databases. We discuss some desirable features in a query language for multimedia databases: simplifications like the use of path expressions and implicit use of functions (methods) as attributes, and explicit specification of the display layout and format either at the data definition level or query specification level. To materialize this last feature, we propose a display specification extension to SQL (SQL+D) that we have implemented.

ER diagram multimedia database object relational data model modeling the WWW 

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Copyright information

© Kluwer Academic Publishers 1998

Authors and Affiliations

  • Chitta Baral
    • 1
  • Graciela Gonzalez
    • 2
  • Tran Son
    • 3
  1. 1.Department of Computer ScienceUniversity of Texas at El PasoEl PasoU.S.A
  2. 2.Department of Computer ScienceUniversity of Texas at El PasoEl PasoU.S.A
  3. 3.Department of Computer ScienceUniversity of Texas at El PasoEl PasoU.S.A

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