The National Information Exchange Model (NIEM) is the result of a collaborative effort by the United States Department of Justice and Department of Homeland Security to produce a set of common, well-defined data elements to be used for data exchange development and harmonization.
NIEM was designed as a core set of building blocks that are used as a consistent baseline for creating exchange documents and transactions across government.
These conformance rules serve as guidelines for any agency utilizing the NIEM to implement their information sharing exchanges.
Grantees that are developing inter-agency XML-based exchanges must comply with the special condition language contained in the grant, and follow the associated NIEM implementation guidelines outlined below.
Additionally tools such as the CAM toolkit can check schema for NDR conformance, compare to NIEM dictionary and report potential interoperability issues.
Grantees are further required to assemble, register and make available without restriction all IEPDs and related artifacts generated as a result of the grant to the component registry.