Dmgis is such a hunge infrastructure that combines advanced technologies of various fields . the thesis organizes and describes its research in the sequence of five - tile architecture as longitude and three structure portions as altitude 论文从分布式移动地理信息系统的定义、体系结构模型和工作平台出发，以dmgis结构上的三部分为经线，五层体系为纬线，展开论述和研究。
