AGENT-BASED DESIGN-MODEL OF ADAPTIVE DISTRIBUTED SYSTEMS

A next generation distributed system is expected to adapt to various c hanges of both the users' requirements and the operational conditions of environment where the distributed system operates. The aim of our r esearch is to establish a new design model of an adaptive distributed system (ADS) to deal with various changes occurred in the system envir onment. In this paper, we propose an agent-based architecture of ADS, based on the agent-based computing paradigm. Then, we implement a prot otype of the ADS with respect to videoconferencing applications and al so evaluate the adaptive functions of the ADS realized on the basis of the proposed architecture.