An Adaptive Fault Tolerance System for ubiquitous computing environments: AFTS

Abstract

This paper presents the design of the AFTS(An Adaptive Fault Tolerance System), which is running on situation-aware middleware. Situation-aware middleware provides standardized communication protocols to interoperate an application with others under dynamically changing situations. Since the application needs of middleware services and computing environment (resources) keep changing as the application change, it is difficult to analyze: whether it is possible that all Quality of Service (QoS) requirements are met, and what QoS requirements have tradeoff relationships. In this paper, we propose a QoS resource error detection-recovery model called "AFTS" for situation-aware middleware. An adaptive Video On Demand (VOD) system is used as an illustrative example of the AFTS model and its resource error detection-recovery. © Springer-Verlag Berlin Heidelberg 2006.