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    18 repositories

    • nbac-admin

      Public
      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.
      tscnbac
      Other
      •1•1•13•0•Updated Oct 20, 2025Oct 20, 2025

    • oasis-open-project

      Public
      A community-driven, standards-based approach to defining information exchange packages for multiple business domains.
      Other
      •7•7•2•0•Updated 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).
      tools
      Java
      •
      Apache License 2.0
      •1•3•1•0•Updated Sep 30, 2025Sep 30, 2025

    • common-model-format

      Public
      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.
      specificationntac
      Other
      •0•9•3•0•Updated Sep 29, 2025Sep 29, 2025

    • niem-open-training

      Public
      NIEMOpen 6.0 training materials including the sample IEPD/MEP
      Other
      •0•0•0•0•Updated Sep 10, 2025Sep 10, 2025

    • .github

      Public
      2•0•0•0•Updated Aug 29, 2025Aug 29, 2025

    • niem-naming-design-rules

      Public
      NIEM Naming and Design Rules Specification
      specificationntac
      XSLT
      •
      Other
      •4•7•2•0•Updated Aug 27, 2025Aug 27, 2025

    • ntac-admin

      Public
      The NTAC is a NIEMOpen Technical Steering Committee, responsible for the NIEM technical architecture. This repo contains its meeting minutes and discussion papers.
      tscntac
      CSS
      •
      Other
      •4•4•10•1•Updated 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.
      tools
      Apache License 2.0
      •1•2•52•0•Updated May 21, 2025May 21, 2025

    • niem-toolbox

      Public
      An open source frontend tool for NIEM data modelers and message developers
      tools
      Apache License 2.0
      •1•2•5•0•Updated May 21, 2025May 21, 2025

    • niem-api-db

      Public
      This repo provides NIEM model data for the database used by the NIEM API project.
      tools
      PLpgSQL
      •
      Apache License 2.0
      •1•2•4•0•Updated May 7, 2025May 7, 2025

    • niem-model

      Public
      The NIEM reference data model
      specificationnbac
      CSS
      •
      Other
      •7•26•22•0•Updated May 4, 2025May 4, 2025

    • mep-builder

      Public
      JavaScript
      •
      Apache License 2.0
      •0•1•0•0•Updated Sep 5, 2024Sep 5, 2024

    • nmo-training

      Public
      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.
      Other
      •0•0•0•1•Updated Sep 21, 2023Sep 21, 2023

    • nmo-admin

      Public
      Other
      •0•0•0•0•Updated Aug 2, 2023Aug 2, 2023

    • conformance-specification

      Public
      This document specifies general conformance guidance, principles, and rules for the National Information Exchange Model (NIEM) version 5.0.
      specificationntac
      Other
      •0•0•3•0•Updated Jul 7, 2023Jul 7, 2023

    • code-lists-specification

      Public
      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.
      specificationntac
      Other
      •0•0•5•0•Updated Jul 7, 2023Jul 7, 2023

    • niem-conformance-targets

      Public
      NIEM Conformance Targets Attribute Specification
      specificationntac
      HTML
      •
      Other
      •2•2•3•0•Updated Apr 18, 2023Apr 18, 2023