A geographic information system (GIS) is simply a way of displaying data related to specific positions on the Earth’s surface to allow one to more easily understand their patterns and relationships. GIS relates to SCADA because most often the starting point of navigation in geographically dispersed projects is a map overview, since this is a natural and logical reference point to centralize information on, and control tasks from. By using the Geographic Information System (GIS) Add-on, you can add intelligence to these map overviews by providing icons that represent the actual positions of your items, such as your plant or equipment locations.