Geospatial Data Model Version 2.5

Version 2.5, released in July 2008, adopts naming rules and content requirements used by the National Information Exchange Model (NIEM) logical model version 2.0. The design of the GDM was adapted to take advantage of the NIEM core, creating a geospatial domain for NIEM that can be integrated into the NIEM logical model in future releases. Version 2.5 is now available for download in the following formats:


As in previous versions, the FGDC Homeland Security Working Group and the GMO are extremely interested in soliciting user feedback about the models and ways to make it more accessible by all users.

Please download the DHS Geospatial Data Model Comment Resolution Matrix VERSION 2.7 [Excel] and add your comments.

Forward your completed matrices as an email to Comments will be adjudicated through the FGDC Homeland Security Working Group-Content Subgroup, and the results reposted to this website.