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Insisting on Persistent Mobile Agent SystemsM

In this paper we continue arguing that persistence is a fundamental requirement to support the development of next-generation agent-based applications. After a general overview of mobility and persistence to clarify the main issues discussed in the paper, we propose a tentative list of facilities that should be supported by persistent mobile agent systems. The main contribution of the paper is a survey of existing persistent and mobile agent systems that includes a comparison based on how well (or badly) they support the proposed list of facilities.