Columbia Center Internet Map Services provide geospatial map data over Internet connections. These services fall into three broad categories:

Map Services are primarily for use as data layers in desktop GIS software applications such as ESRI Arc Explorer or ArcGIS. These services generally incorporate only one data theme or layer and are meant to be combined with other data.

Web Applications may be viewed in an ordinary web browser such as IE or Firefox. They can be customized to deliver GIS functionality over the Internet. Generally, web applications are designed to address a specific issue or purpose.