| Today, our life style has been changed greatly by the information technology and the mobile communication. It becomes true to learn and cognize the knowledge about surrounding and environment more clearly in the digital earth and the digital city. The capabilities of applying the information, especially the spatial information, are not only the privileges in the government, enterprises and scientists, but also the demands of the public. Being directed by the idea of serving the people, the new information-applying mode is proposed. Anyone can request to use the advantages which the science and technology bring us in anywhere. It should serve to the public and the society firstly. As part of these high-techs, the Mobile GIS Integration Service was represented in this thesis.This research is based on the MAS (Multi-Agent System) architecture, which is one of the new software patterns to solve the problems in complex system. The study also based on the modern mobile communication mechanisms after 2G periods, and how to realize the 4A (Anyone acquires Any-information in Anywhere and Anytime) Service.The instance is the Key-technologies Study in the Spatial Information Service System for Mobile Users, which is one of the sub invited public bidding research in the Chinese 863 project of the Key-technologies Study about the Digital City, and supported by the Shanghai Science and Technology Funds in 2001 at the same time.The theories, technical methods and the instance about Mobile GIS Integration Service based on MAS Architecture were discussed in this thesis. As a whole, this paper is consisted of six parts.In the first part, the author was in the new sight of Geography, recognized the development of GIS, and introduced the process from the Geographical Information System to Geographical Information Service. The foundation of the Geographical Information Science by comparing and analyzing many literatures, the generation of the mobile GIS development were studied. The up-to-date Mobile GIS development stage as well as the Mobiles GIS Integration Service was brought forth, which is the topicof the thesis.In The second part, the state and international studies including theories, technical methods and the development related to the mobile computation and GIS were introduced. The concept of Mobile GIS Integration Service (M-GIS2) was proposed and explained. Then the paper introduced architecture of M-GIS2. The spatial data structures, spatial analyzing methods and communication mechanism were studied as the basic makeup of the M-GIS2. The Agent and the MAS architecture were mentioned as the core of M-GIS2. The standards, criterions and protocols were discussed as the indemnification of M-GIS2.The third part discussed the Agent, MAS architectures, Agent-Oriented Software Engineering (AOSE) and how to use these theories in M-GIS2. Based on the clearly cognition of the Agent, MAS and AOSE, the universal Spatial-Info Agent architecture was proposed. This part put the emphasis on applying of the theories about Agent, MAS and AOSE and solving the organization problems of M-GIS2.In the fourth part, the key technologies about practice of M-GIS2 were studied. This paper discussed the data integration technologies faced multi information sources, the rapid searching and intelligent distilling technologies of layered magnanimity spatial data, two buildings' best route choice arithmetic based on the road network, interoperation in different GIS platform, GIS WAP Service faced the mobile communication mechanisms upward 2. 5G, the system architecture based on Agent and MAS etc. All of above were separated from three directions, spatial information dealing, service and the demonstration system integration. These technologies were born from the engineering practice and experience.The fifth part focused on the building of the Spatial Information Service Demonstration System for Mobile Users. The background, goals, system designing, system functions and realization were introduced.In the last part, the innovations of the st...
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