基于Agent的空间信息网格系统

Spatial Information Grid-An Agent Framework

空间信息网格（SIG）是一种具有按需服务能力的空间信息基础设施。该文提出将Agent技术应用于构建空间信息网格体系结构．包括三层：用户／应用层、Agent服务层、信息层。不同的应用经由Agent服务得到各自所需的空间信息，Agent服务为用户访问、处理空间信息提供完全透明的服务．并对该体系结构的执行结果进行讨论。

Spatial information grid （SIG） is a spatial information infrastructure that has the capability of providing services on-demand. In this paper, agent technology is adopted to construct a SIG framework, which contains three layers： users/applications layer, agent services layer and information layer. Different applications can get their spatial information via agent services, and agent services make the procedure of navigating and accessing spatial information transparent to users. Also, the implementation issues of the framework are discussed.