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Industrial Digital Twin Association e.V.

Industrial Digital Twin Association (IDTA)

Governance of the specifications contained in the repository is done by the IDTA

Asset Administration Shell Specifications

The release of the Asset Administration Shell Specifications can be found here: https://industrialdigitaltwin.org/en/content-hub/aasspecifications

You find the html documentation under the link: https://industrialdigitaltwin.io/aas-specifications

The version "in progress" is not yet released but shows the version in work.

Select Version of the Specification

The github repositories dedicated to Asset Administration Shell Specifications start with "aas-specs". The two repositories "aas-specs-antora-ui" and "aas-specifications" are used for generating the HTML documentation based on Antora.

Submodel Template Specifications

The Submodel Template Specifications can be found here: https://industrialdigitaltwin.org/en/content-hub/submodels

The Submodel Templates can be found in https://github.com/admin-shell-io/submodel-templates

FAQ and Best Practices

Questions often asked and best practices can be found here: https://github.com/admin-shell-io/questions-and-answers

Feel free to add your question as an issue.

Validation

You built a Submodel Template or a Submodel or you implemented an API conformant to the Asset Administration Shell Specifications? Then you can validate them, for details see: https://github.com/admin-shell-io/aas-test-engines

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  1. submodel-templates submodel-templates Public

    IDTA Submodel Templates for AAS

    Python 74 23

  2. aas-specs-metamodel aas-specs-metamodel Public

    Repository of the Asset Administration Shell Specification IDTA-01001 - Metamodel

    PowerShell 69 37

  3. aas-specs-api aas-specs-api Public

    Repository of the Asset Administration Shell Specification IDTA-01002 API

    23 14

  4. questions-and-answers questions-and-answers Public

    This repository aims for providing answers to often asked questions in the context of the Asset Administration Shell.

    30 9

  5. aas-test-engines aas-test-engines Public

    Official test tooling for the Asset Administration Shell

    Python 25 6

  6. aas-specs-aasx aas-specs-aasx Public

    Repository of the Asset Administration Shell Specification IDTA-010005 AASX Package File Format

    4 1

Repositories

Showing 10 of 35 repositories
  • aas-specs-api Public

    Repository of the Asset Administration Shell Specification IDTA-01002 API

    admin-shell-io/aas-specs-api’s past year of commit activity
    23 CC-BY-4.0 14 104 (1 issue needs help) 9 Updated Mar 29, 2026
  • submodel-templates Public

    IDTA Submodel Templates for AAS

    admin-shell-io/submodel-templates’s past year of commit activity
    Python 74 CC-BY-4.0 23 84 0 Updated Mar 25, 2026
  • aas-specs-iec61360 Public

    Repository of the Asset Administration Shell Specification IDTA-01003-a Data Specification IEC61360

    admin-shell-io/aas-specs-iec61360’s past year of commit activity
    2 CC-BY-4.0 2 9 2 Updated Mar 25, 2026
  • aas-specs-metamodel Public

    Repository of the Asset Administration Shell Specification IDTA-01001 - Metamodel

    admin-shell-io/aas-specs-metamodel’s past year of commit activity
    PowerShell 69 CC-BY-4.0 37 56 3 Updated Mar 25, 2026
  • smt-semantic-models Public

    This repository is for Aspect Models that are used as semantic definition in Submodel Templates or vice versa: that are derived from existing Submodel Template Specifications.

    admin-shell-io/smt-semantic-models’s past year of commit activity
    HTML 5 CC-BY-4.0 4 8 0 Updated Mar 25, 2026
  • aas-specs-aasx Public

    Repository of the Asset Administration Shell Specification IDTA-010005 AASX Package File Format

    admin-shell-io/aas-specs-aasx’s past year of commit activity
    4 CC-BY-4.0 1 1 0 Updated Mar 24, 2026
  • aas-specs-measurement-units Public

    Repository of the Asset Administration Shell - Data Specification Measurement Units

    admin-shell-io/aas-specs-measurement-units’s past year of commit activity
    1 CC-BY-4.0 2 0 0 Updated Mar 20, 2026
  • questions-and-answers Public

    This repository aims for providing answers to often asked questions in the context of the Asset Administration Shell.

    admin-shell-io/questions-and-answers’s past year of commit activity
    30 CC-BY-4.0 9 12 0 Updated Mar 16, 2026
  • aas-specs-security Public

    Repository of the Asset Administration Shell Specification IDTA-01004 - Security

    admin-shell-io/aas-specs-security’s past year of commit activity
    3 CC-BY-4.0 4 11 (1 issue needs help) 3 Updated Mar 3, 2026
  • aas-specifications Public

    Documentation website for aas-specs using Antora

    admin-shell-io/aas-specifications’s past year of commit activity
    HTML 2 Apache-2.0 5 2 0 Updated Feb 24, 2026

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