What is a Subset Schema Generation Tool?
Consequently, the Department of Justice funded the Georgia Tech Research Institute (GTRI) to build a Subset Schema Generation Tool (SSGT). This tool presents the full set of GJXDM types and elements for the user to select into a subset. Types and elements can either be selected as they are encountered, or the user can search the GJXDM using the GJXDM Model Viewer (which is contained in the SSGT.) Once selected, types and elements are included in the subset. Types and elements erroneously included in the subset can be removed as desired.
Once the desired subset is built, the user can generate the schema subset (which is in fact often a set of related schemas, as is the full GJXDM).
Schema Subset Generation Tool: http://justicexml.gtri.gatech.edu/subset_tool.html