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Today, the National Information Exchange Model (NIEM) is announcing the release and general availability of NIEM 5.0. This major release underscores NIEM’s value
and relevance as a force multiplier in enabling secure, scalable enterprise-level data interoperability across diverse, complex systems and organizations. The release establishes the framework for the NIEM metamodel currently in development.
“NIEM 5.0 represents three years of extensive NIEM user-community input, development, and harmonization efforts to deliver information exchange solutions addressing our users’ needs,”
said Katherine Escobar, Managing Director, NIEM Management Office. She continued, “With NIEM’s community-powered, open source approach, users directly contribute both content and technical expertise, propelling NIEM’s growth forward with timely solutions to
challenging interoperability problems.”
NIEM 5.0 Highlights
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Controlled Unclassified Information (CUI) metadata;
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Refined Geography Markup Language (GML) profile;
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Major updates to the Federal Bureau of Investigation’s
National Crime Information Center National Data Exchange (NDEx), and Uniform Crime Reporting code tables;
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Public Health Emergency Operations Center (PH-EOC) Minimum Data Set;
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Simplified release folder layout and the removal of version numbers from file paths;
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Updated character encoding (from US-ASCII to UTF-8) and addition of attribute xml:lang to the reference schemas for better international support;
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NIEM _javascript_ Object Notation (JSON)
Schema output, providing the basis for the development of JSON Schema for specific exchanges.
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Generic Statistical Information Model (GSIM) content;
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Many harmonization content updates to the NIEM Core and multiple domains.
NIEM facilitates secure information exchange by providing the definitions, relationships, and structure by which data are shared among domains and communities of interest. NIEM’s Core
contains the data components within information exchange elements which are universally available to all NIEM users. NIEM 5.0’s new and updated specifications better describe what data looks like and means. NIEM’s strength of extensibility allows individual
domains to further define data elements specific to their unique needs and requirements.
NIEM currently supports exchange efforts among fifteen chartered domains and communities of interest. These are formed when organizations recognize the need for secure, rapid data exchange.
NIEM’s membership includes representatives from federal, state, local, tribal, private, and
international organizations.
One example of the NIEM community’s active involvement in the development of 5.0 is NIEM’s Harmonization Workgroup, which oversaw the harmonization process. The workgroup
included several dozen NIEM user/volunteers actively involved throughout the review process of both Core and cross-domain content. The group remodeled and refactored content to improve consistency and provide easier reuse. In all, the group reviewed over a
thousand components, and resolved over eighty harmonization and technical issues.
The NIEM 5.0 release package is available on GitHub.
These online tools are available to search and view NIEM release content:
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The Schema
Subset Generation Tool (SSGT) may be used with any published release to search the model and build XML schema subsets for use in IEPDs. Go to “Options” to choose a
previous release.
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Movement can
be used with the current release to search the model.
About the National Information Exchange Model
The National Information Exchange Model (NIEM) provides a model framework with rules and guidance designed to develop consistent, well-defined enterprise level information exchanges.
For fifteen years, NIEM has successfully supported information communities of interest with a shared need for data interoperability across the public and private sector, both nationally and internationally.
To learn more, please visit www.NIEM.gov.
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