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In this paper, we present the concept, design, and applications of a distributed multimedia database. A standard three-tier client-server architecture is proposed, including (i) database server (ii) middleware and underlying network infrastructure, and (iii) client module. We provide our evaluation of the latest technique developments related to different parts of the configuration, and discuss various options for distributed computing in a heterogeneous environment. We also present a case study/application of concept and configuration discussed in the paper, and review our implementation of an object-relational multimedia database using Informix Universal Server (IUS), CORBA/Java, and a client interface developed by our team.