Designing a federated multimedia information system on the semantic web

R. Vdovják, P. Barna, G.J.P.M. Houben

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

4 Citations (Scopus)


A federated Web-based multimedia information system on one hand gathers its data from various Web sources, on the other hand offers the end-user a rich semantics describing its content and a user-friendly environment for expressing queries over its data. There are three essential ingredients to successfully deploy such a system. First, one needs a design methodology identifying different design phases and their underlying models which serve as a framework for the designer. Second, there must be a set of tools that are able to execute the design, i.e. they serve as the back-end of the information system instantiating the models with data coming from various Web sources. Third, there also must be an entry point for the end-user, where he is able to explore what the system can do for him and where he can formulate his queries. This paper is a follow-up of our previous work describing the Hera design methodology and contributes to all three issues above. In particular, it refines the existing methodology by presenting an explicit RDFS-based integration model and explains how the mediator uses this model to obtain query results. The issue of a user-friendly front-end is addressed by introducing our interface for browsing and querying RDFS-based ontologies.
Original languageEnglish
Title of host publicationAdvanced Information System Engineering (Proceedings CAiSE 2003, Klagenfurt/Velden, Austria, June 16-20, 2003)
EditorsJ. Eder, M. Missikoff
Place of PublicationBerlin
ISBN (Print)978-3-540-40442-2
Publication statusPublished - 2003

Publication series

NameLecture Notes in Computer Science
ISSN (Print)0302-9743


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