Foundations on Open Distributed Systems based on Mobile Agents

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One of the main objectives of this project is to establish both software architecture and foundations for the design and development of extensible open distributed systems. The theoretical basis is given based on mobile agents via construction of formal calculi of the distributed systems. The detailed research results are stated in the followings :(1) Design of Software ArchitectureWe have designed a basic framework of software architecture based on the five layers computation model by the investigators, CORBA and ORB of distributed objects.(2) Solutions to treat Heterogeneity in Open Distributed SystemsBased on the computation model in (4), we have established methodologies for dynamic dispatching and execution of interface software.(3) Solving Constraints on Time, Spaces, and ResourcesWe have formalized basic framework for solving constrains on time, spaces, and computer resources to implement mobile agent system. This formalization have been evaluated by applying to several specific applications.(4) Computation Models for Open Distributed SystemsWe have proposed a computation model of open distributed system based on the M-pi calculus which was introduced by the investigators for design of mobile agent systems.