The Geoportal extension is a key component supporting a Spatial Data Infrastructure (SDI).  Geoportals allow users to search, view, and download geospatial resources such as authoritative data, high quality maps, visualizations, spatial analysis tools and models, and rich applications. For data and service providers, the Geoportal extension provides means to manage, publish, and store metadata.

 Geoportals support connecting the policies, institutions, and technologies that facilitate the creation, exchange, integration, and use of gespatial resources across a community.  To learn more about SDI, visit the Spatial Data Infrastructure industry site.