Study On The Concept System, Service Mode And System Architecture Of Network Information Integration Service

Internet is now the most influential network in the world and after the three developing phases of national defence application, teaching and scientific research application and commercial and social application, it is outspreading rapidly in the world. With the development of network material entity, network users environment, governments' information policy and law environment and social culture environment are also changing. Network environment is forming and keeps on evolving. Under network environment, users' information requirements are developing towards synthesis and professional, integration and high efficient, and personalization and elabarate, basing on the requirements of universality, timeliness and multi-dimensions. Users requires the deep development and utilization of information distributed under network environment. Meanwhile, information service is changing from traditional information service to network information service, but there exist many problems in network information service, distributed information resource's effective service has not been solved yet, there are obvious deficiency in network information resource's deep development and utilization, and network information service's current situation has failed to keep up with the development of users' information requirements. Requirement draughts service, the development of users' information requirements and practice of information service call for new service mode and service idea, and network information integration service emerges as the times require. As a new study topic, current studies on network information integration service are fall from sufficient. Most relevant researches are distributed in different areas, which has different emphasis and concepts description, and fail to provide generic and systemic research. From the point of network information resource's deep development and utilization, connected with the research results in information service area and information technology area, the paper carries out a generic and systemic study on network information integration service, and mainly discusses its concepts system, service mode and system architecture.Network information integration service indicates that basing on some certain topics, organically linking relevant information from different sources (no matter its position, data structure and communication requirement) to make them a whole, and presenting the whole dynamic process to their users with network, thus providing their users with dynamic, temporally and spatially consistent and topic-oriented information service. When using network information integration service, users are faced with "one site desktop" computer interface, behind which is the comprehensive information integration guaranteeing system. Information integration supporting system is composed organically of network supporting system, resources guaranteeing system, technologies guaranteeing system, guaranteeing system and personnel guaranteeing system, and technologies guaranteeing system is composed of supporting technologies, application technologies (information construction and collection technologies, information organization and management technologies, information provision and service technologies) and key technologies. All systems are dynamic, developing and changing.The paper also discusses the concepts of integration and information integration, the elements and levels of network information integration service, and the theoretical base of network information integration service study. To make network information integration service's connotation clearer, the paper compares network information integration service with traditional information service and network information service and separate service, centralized service, distributed service and integration service to find that network information integration service has both "network" service's and "integration" service's advantages and it is an effective approach for solving the conflicts between...