This paper presents a fault tolerance developing system framework based on replication technique. The system maintain several replicated objects. When the primary object fails, the backup object will take over the primary object's work to providecontinuous services. Using Object Oriented Design(OOD) technique, the developing framework can enhance the software reusability. JAVA RMI technique is also introduced in this paper, it can cover up communication details and reduce the complication ofcommunication programming. At the end of the paper, we demonstrate our system's superiority through a brief comparison between other related works and ours.
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