Milos: A multimedia content management system

This paper describes the architecture of the MILOS Content Management System. MILOS supports the storage and content based retrieval of any XML document, as well as multimedia documents whose descriptions are provided by using heterogenous metadata models represented in XML. MILOS is flexible in the management of documents containing di erent types of data and content descriptions; it is efficient and scalable in the storage and content based retrieval of these documents. The paper illustrates the solutions adopted to support the management of different metadata descriptions of multimedia documents in the same repository, and it illustrates the experiments performed by using the MILOS system to archive documents belonging to three different and heterogenous collections which contain news agencies, scientific papers, and audiovideo documentaries