International Journal of Information Studies Meriem Zaiter, Salima Hacini, Zizette Boufaida 4 1 2000 https://www.dline.info/ijis/fulltext/v4n1/ijisv4n1_2.pdf Distributed systems, can have a large number of independent hardware components that cooperate and collaborate to achieve a given objective. However, the assurance of the reliability is not evident because each of these components may cease to operate at any time, which result probably error and a failure of the whole system. The goal of this paper is to propose a way to control the continuous operating of a distributed system via a contextaware mechanism.