在近年来的软件发展中,组件化和网络的进步是其重要的特征之一。软件工业的主要突破点便是软件之间的结合和组件化。本文在研究国内外有关成果的基础上,介绍了组件技术和万维网地理信息系统的结合,针对ＧＩＳ的特殊性,指出了用组件技术构建ＷｅｂＧＩＳ系统可行性、一般步骤和主要任务,着重剖析了在ＷｅｂＧＩＳ系统中组件模型的运行机制。将组件对象模型这一新的技术引入 ＷｅｂＧＩＳ领域,提高 ＷｅｂＧＩＳ技术水平和工作效率,充分发挥ＷｅｂＧＩＳ的效能。

The rapid advance of networking and componentization technology is one of the most important characteristics in software development in recent year. The main breakthrough in software technology is in software cooperation and componentization. Based on the achievement of relative study home and abroad,this paper introduces the combination of COM technology and WebGIS. Arming at the particularity of GIS, this paper describes the necessity, feasibility, common process and main task of using COM to construct WebGIS. At last, this paper describes how to import COM technique to the field of WebGIS in order to improve the level of WebGIS technique and work efficiency, utilize the efficiency of WebGIS fully.