摘要

Decentralized tuple space is an effective paradigm for distributed collaborative applications since its loose decoupling, availability and flexibility in system's organization. However, there are very few research results on its replication and consistency. This paper presents a decentralized tuple space model to enable tuple update by creating loose update links among decentralized Tuple space nodes. Besides, tuples are grouped with tuple types, the unit of being applied a replication policy, which controls the distribution of replicas. The model is simulated by Desmo-J. The experiments show that applying differentiate replication policies used for different purposes is absolutely necessary, because no single policy is suitable under all use patterns.