Autonomous Mobile Agent Coordination Technology for high quality alternative servies provision

Due to the advancement of information technology, the business strategy is changing for a modern online environment. For centralized data consistency management, the conventional database systems can't satisfy timeliness and nostop service requirement under dynamically changing environment. Autonomous Decentralized Database System is proposed to meet these requirements. In ADDS, each site holds Allowable Volume(AV) in which each site can have local updates autonomously without communicating with any master site. And background coordination technology for autonomous adjustment of AV among the sites enables flexible provision of services. In the circumstance that AV is not enough in the system, however, the background coordination technology is not enough. In the system supporting multiple alternative services, AV shortage also allows both increase of the timeliness and decrease of the satisfaction. The satisfaction requirement means that each site offers products of user's desire to as many users as possible. To solve these problems, Autonomous Mobile Agent Coordination Technology is proposed. The technology is composed of two sub technologies. In Autonomous Relocation Technology, MA autonomously detects AV shortage thorough sites and distributes AV among sites. Autonomous Guarantee Technology makes MA assure satisfaction in adjusting alternative services reserved among sites by coordination with sites. The effectiveness of proposed technology is proved by simulation that both timeliness and satisfaction are improved.