A federated multimedia database system

Abstract

Today, a lot of work is dedicated to the development of systems that store, retrieve, or transport continuous-media data. Much less, however, is investigated to make these systems (i.e. media servers) interoperable, so that they can be used in cooperation with other systems in a single application. In particular, the cooperation of media servers and traditional database management systems (DBMS) would be useful for several reasons: (a) traditional DBMS are in widespread use already and serve very efficiently in the management of structured data, (b) media servers are in use already, too, and they provide efficient support for media data management, and (c) there is a trend to use media data as an add-on to existing information systems that are based on traditional DBMS. An integration of media-data management and structured-data management in one system seems to be a very tedious task and may in fact never work out, since the two types of data are very different and require special treatment, including internal aspect such as buffer management, transaction management, access paths, and so on. Hence, a federation of the two types of data managers seems to be a better way. It is the idea of the thesis, which is presented shortly in this paper, to investigate the various aspects and implications of such a specific kind of federation.

Architektur Multimedialer Informationssysteme

“…Die MMIS-Gruppe 1 arbeitet in ihren Projekten, die sich mit jeweils unterschiedlichen Aspekten verteilter MMIS befassen, an Einzellösungen für die genannten Probleme. Im Einzelnen sind dies die Projekte ACTIVA [1,16,21,22], Imos [7], MARS [20], Memo.real [28,30,36], MacWrap [28,29] und VirtualMedia [31,32] sowie das bereits abgeschlossene Projekt Dsmily [5,6]. Um diese Beiträge zu einem zukünftigen webbasierten MMIS koordiniert darstellen zu können, wurde eine MMIS-Referenzarchitektur entwickelt.…”

Output Constraints in Multimedia Database Systems

“…These systems must be able to manage large amounts of multimedia data. Some special architectures have been proposed [BBH + 02,Ber02] which allow efficient storage, retrieval, presentation, and manipulation of multimedia data.…”