| Agent has become an important technology in both artificial intelligence and mainstream computer science. Agent and multi-agent systems (MAS) technology is a rapidly developing area of research. Agent and MAS are being used in broad field: complex industry control system, electricity system management, enterprise information integration and new enterprise organization. This work is support by National Natural Science Foundation of P. R. China (No.79970035). This dissertation is devoted to theoretical and practical study of enterprise information integration based on MAS. The main contents are as follows:1 .The historical development of agent and MAS is reviewed from theory and practice. Great emphasis is place on prospect of integrating enterprise information using MAS.2. To improve Enterprise Information Integrating Platform's (EIIP) ability of integrating and flexibility, this paper proposes an open architecture of information integration based on multi-agent (OAIIA) and describes the structures of the agent in OAIIA. OAIIA consists of three tiers: interface tier, coordination tier and model tier, and every tier is composed with multi-agent. Due to the explicit three-tier structure of OAIIA and the autonomy, sociability, reactivity and rationality of multi-agent, EIIP based on OAIIA has many advantages such as good open-ability, integration-ability and self-adaptability. At last, the implementation technique and a case of supporting dynamic business process based on OAIIA are also put forward.3. This paper proposes the intelligent interface architecture for human-computer cooperation named IIAMA (Intelligent Interface Architecture based on Multi-Agent), and discusses in detail how to deal with temporal relation of multimedia object, intelligent guiding and application semantic in IIAMA. IIAMA is based on multi-agent model in which each visual element cooperates with each other for providing continuous support to a user. The control agent coordinates communication among visual elements, and the user agent provides user interest model and reasoning service. Besides, IIAMA supports larger grain reuse and flexible interface system composition.4. The advent of the new enterprise paradigms of extended, virtual andagile enterprises causes new requirement on organizational concepts and supporting technologies. Inter- and intra- organizational relations need enterprise information system (EIS) to support their establishment, deployment and discontinuation. Due to dynamic business process is one of the most important features of virtual enterprise, we propose the model of multi-agent system (MAS) for supporting dynamic enterprise model (DEM). It separates the business process from the organizational structure (organizational structure tier and business process tier), models each of them as MAS, and coordinates agents by "yellow page" mechanism. This model not only can regulate itself in terms of DEM, but also centered on the coordination strategies between agents composing it. It is believed that the model of MAS is a practical way to build flexible EIS.5. The flexibility of enterprise information platform is decided by that the model of multi-agent system is the image of the model of enterprise business or not. By combining information engineering with object-orient, a method based on subject is present, which getting model of multi-agent in control tier in terms of the analysis of function subject of enterprise. An example is also discussed.6. Method for getting MAS model in model tier is preset, which by analyzing function subject of enterprise behavior to get object model, and transfer object model into MAS model. In order to enhance the practicality of agent technology, how to realize model tier based on MAS is discussed. The implementation technique and a case of model tier based on MAS are also put forward.7. The relation of management between enterprise information system is studied from the system point of view and some key problems of Enterprise Resource Planning (ERP) are present. I...
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