Esri Geoportal Server is an open source software that allows organizations to manage and publish metadata for geospatial resources such as datasets and web services. This enables discovery and use of those resources by supporting standards-based metadata discovery. It helps reduce data production time and redundancy by connecting data producers with consumers, and maintains data integrity by allowing sharing of authoritative data versions. Key features include supporting international standards, cataloging different types of GIS resources, and integrating with ArcGIS and other mapping applications.