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Building distributed Web gis: A Mobile Agent Based Approach

Wuhan University Journal of Natural Sciences 2001年第Z1期6卷 474-481页

作者： jhguan@*** Guan Ji hong 1 , Zhou Shui geng 2 , Bian Fu ling 3, Meng Ling kui 3 1. School of Computer, Wuhan University, Wuhan 430072, China 2. State Key Laboratory of Software Engineering, Wuhan University, Wuhan 430072, Chin School of Computer Wuhan University Wuhan China State Key Laboratory of Software Engineering Wuhan University Wuhan China College of Remote Sensing and Information Engineering Wuhan University Wuhan China

The diversity of giss and the wide spread availability of WWW have led to an increasing amount of research on integrating a variety of heterogeneous and autonomous giss in a cooperative environment to construct a new generation of gis characterizing in open architecture, distributed computation, interoperability, and extensibility. Our on going research project MADgis (Mobile Agent based distributed Geographic Information System) is reported, in which we propose the architecture of MADgis to meet the requirements of integrating distributed gis applications under Internet environment. We first describe the architecture of MADgis, and detailed discussions focusing on the structure of client site, server site and mobile agent in MADgis. Then we explore key techniques for MADgis implementation.

关键词： distributed gis mobile agent architecture mobility interoperability

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Spatial Data Sharing on Grid

引用

Computer Aided Drafting,Design and Manufacturing 2007年第2期17卷 43-48页

作者： ALDUKALI Almselati Department of Civil Engineering Beijing University of Aeronautics and Astronautics

The Internet technology has already changed the Information Society in profound ways, and will continue to do so. Nowadays many people foresee that there is a similar trajectory for the next generation of Internet - Grid Technology. As an emerging computational and networking infrastructure, Grid Computing is designed to provide pervasive, uniform and reliable access to data, computational and human resources distributed in a dynamic, heterogeneous environment. On the other hand, the development of Geographic Information System （gis） has been highly influenced by the evolution of information technology such as the Internet, telecommunications, software and various types of computing technology. In particular, in the distributed gis domain, the development However, due to the closed and centralized has made significant impact in the past decade. legacy of the architecture and the lack of interoperability, modularity, and flexibility, current distributed gis still cannot fully accommodate the distributed, dynamic, heterogeneous and speedy development in network and computing environments. Hence, the development of a high performance distributed gis system is still a challenging task. So, the development of Grid computing technology undoubtedly provides a unique opportunity for distributed gis, and a Grid Computing based gis paradigm becomes inevitable. This paper proposes a new computing platform based distributed gis framework - the Grid Geographic Information System （G^2IS）.

关键词： distributed gis grid computing data sharing spatial information system distributed computing

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