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    • The NBAC is a NIEMOpen Technical Steering Committee, responsible for the NIEM business architecture, the management of NIEM Core, and the support of NIEM domains. This repo contains its meeting minutes and tasks.
      11130Updated Oct 20, 2025Oct 20, 2025
    • A community-driven, standards-based approach to defining information exchange packages for multiple business domains.
      7720Updated Oct 12, 2025Oct 12, 2025
    • cmftool

      Public
      CMFTool is a command-line tool for the developers of NIEM-conforming data exchange specifications using the NIEM Common Model Format (CMF).
      Java
      1310Updated Sep 30, 2025Sep 30, 2025
    • This specification defines the Common Model Format (CMF), a data model that can be expressed as XML, JSON or any other serialization that NIEM supports.
      0930Updated Sep 29, 2025Sep 29, 2025
    • NIEMOpen 6.0 training materials including the sample IEPD/MEP
      0000Updated Sep 10, 2025Sep 10, 2025
    • .github

      Public
      2000Updated Aug 29, 2025Aug 29, 2025
    • NIEM Naming and Design Rules Specification
      XSLT
      4720Updated Aug 27, 2025Aug 27, 2025
    • The NTAC is a NIEMOpen Technical Steering Committee, responsible for the NIEM technical architecture. This repo contains its meeting minutes and discussion papers.
      CSS
      44101Updated Aug 26, 2025Aug 26, 2025
    • niem-api

      Public
      This repo provides an API and backend support for NIEM including model management, search, transformations, migrations, and validation.
      12520Updated May 21, 2025May 21, 2025
    • An open source frontend tool for NIEM data modelers and message developers
      1250Updated May 21, 2025May 21, 2025
    • This repo provides NIEM model data for the database used by the NIEM API project.
      PLpgSQL
      1240Updated May 7, 2025May 7, 2025
    • The NIEM reference data model
      CSS
      726220Updated May 4, 2025May 4, 2025
    • JavaScript
      0100Updated Sep 5, 2024Sep 5, 2024
    • Support materials for NIEM Training, a technical webinar focused on developers and implementers who are interested in a deep-dive of NIEMOpen. They form a resource used in-class, but also for use by attendees at any time, or as standalone materials.
      0001Updated Sep 21, 2023Sep 21, 2023
    • nmo-admin

      Public
      0000Updated Aug 2, 2023Aug 2, 2023
    • This document specifies general conformance guidance, principles, and rules for the National Information Exchange Model (NIEM) version 5.0.
      0030Updated Jul 7, 2023Jul 7, 2023
    • NIEM Code Lists Specification establishes methods for using code list artifacts with NIEM information exchange specifications. It provides for the use of Genericode documents and for CSV code lists. It supports the use of code lists at schema definition time via annotations for XML Schema documents that bind schema components to code lists.
      0050Updated Jul 7, 2023Jul 7, 2023
    • NIEM Conformance Targets Attribute Specification
      HTML
      2230Updated Apr 18, 2023Apr 18, 2023