Abstract

The architecture of the Microbe distributed database management system is described, with particular emphasis on the distributed execution of user requests controlled in a fully decentralized manner by a distributed execution monitor (SER). The monitor is based on the results of a dynamic and decentralized query decomposition algorithm known as Dopage. Microbe is now being implemented on a local broadcasting network of LSI-11 machines developed at Laboratoire IMAG for scientific and administrative applications. It was designed to be used for research in the distributed data processing field particularly concerning the implementation of the ISO open systems interconnection model levels 5 and 7 (session and application layers) for a loosely coupled distributed database system.

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