There are several publicly available tools to search the NIEM 2.0 reference model and generate schema subsets that you can bring into a project. The primary tool I use is the NIEM Tools site maintained by Georgia Tech. This is also the site that is linked to from Niem.gov when you click the "tools" link. There is also a fine site out there called "Niem-o-Rama" that links to a lot of other tools that help with the Information Package Exchange Documentation Process (IEPD Process). The IEPD process ......