SAGE Web is a Rich Internet Application (RIA) built using Microsoft's Silverlight™ technology to provide a lightweight but rich geospatial visualization. Rich Internet Applications (RIA) are a class of web-based applications that provide interactivity as good, or better, than traditional applications but are designed to be run inside a web browser. In addition, most RIA frameworks limit access to local resources to provide enhanced security. ElanTech's RIA is based on the Microsoft Silverlight™ plug-in.