NIEM 4.2 is a minor release, published October 2019.
Download the full release package as a zip file
View schemas and documentation on release.niem.gov or GitHub
Use online tools to explore the contents of NIEM 4.2:
Schema Subset Generation Tool (SSGT) - search or build XML schema subsets for use in IEPDs
(go to Options in the menu bar to switch to the 4.2 release)
Model Viewer - browse namespaces and their contents
Download the component spreadsheet or the code spreadsheet to explore the contents of NIEM 4.2 in Excel
Added and updated DNA and pedigree components in the Biometrics domain
Added components to the Emergency Management domain to support the Public Health Emergency Operations Center (PH EOC) Minimum Data Set
Updated FBI code sets
See the NIEM 4.2 readme for a list of changes.
The following are the NIEM specifications that can be used with this release:
The NIEM Naming and Design Rules specifies the data model XML Schema components and XML data for use with the National Information Exchange Model (NIEM). Learn more...
The NIEM Information Exchange Package Documentation (IEPD) Specification specifies normative rules and non-normative guidance for building NIEM information exchange messages. It defines IEPD artifacts like subset schemas, extension schemas, and MPD catalogs; and recommends how the package should be structured. Learn more...
The NIEM JSON Specification establishes the technical basis for using JavaScript Object Notation (JSON) as a data format for exchange of information consistent with NIEM-conformant schemas and information exchange package documentations (IEPDs). Learn more...
The NIEM Conformance Specification introduces the idea of NIEM conformance and provides a general normative definition for its meaning, how it applies, and to what it does and does not apply. It describes the benefits of conformance, and refers to sources of information, tools, and help. Learn more...
The Code Lists Specification adds support for new capabilities of NIEM code lists beyond the basic enumeration representations provided by XML and JSON schema. Key features include the definition of codes in CSV or Genericode files, dynamic code lists via run-time binding, and multi-column code table support. Learn more...
The Conformance Targets Attribute Specification (CTAS) defines how NIEM XML documents indicate what kind of artifact they are through the use of a conformance targets attribute. Learn more...
The NIEM High-Level Version Architecture (HLVA) Specification identifies the processes, artifacts, and responsibilities required to produce new releases of the NIEM model. It also establishes a regular release cycle for predictable and manageable NIEM updates. Learn more...