ArcIMS

ArcIMS (standing for Arc Internet Map Server) is a Web Map Server produced by Esri. It is a GIS that is designed to serve maps across the Internet. Sometimes these maps are just static images allowing simple panning and zooming, while others are more complex pages. Examples of interactive maps served with ArcIMS include maps with layers that can be turned on and off, or with features containing attributes that can be queried. A visitor to a site driven by ArcIMS needs nothing more than a web browser: the GIS and database are maintained on the server side.