Secondly, a message mechanism is used to provide communication and coordination between GIS agents, and a set of Geo Agents message types are designed according to the properties of GIS and agent.

• 其次 ,采用消息机制实现不同 GIS Agent之间的合作与交互 ,并结合 GIS应用的特点及 Agent的功能 ,设计了一组特定的 Geo- Agents消息 ;