Nowadays, one of the most significant research subjects related to Digital City is how to build a unified platform on which data can share and interact by making use of the established GIS.
这样就造成了系统难以横向拓展,不能很好地进行业务联动,如何利用已建立的地理信息系统,建立整个城市范围的地理信息交互平台,是目前重要的研究课题。