About EIRA

About the European Interoperability Reference Architecture

The European Interoperability Reference Architecture (EIRA©) is an architecture content metamodel defining the most salient architectural building blocks (ABBs) needed to build interoperable e-Government systems. The EIRA© provides a common terminology that can be used by people working for public administrations in various architecture and system development tasks. The EIRA© was created and is being maintained in the context of Action 2016.32 of the ISA² Programme. The EIRA uses (and extends) the ArchiMate language as a modelling notation and uses service orientation as an architectural style. 

EIRA v5.0.0 Updated documentation.

EIRA v3.1.0 was released on the 27th of July 2020 after which the EIRA has been tested by writing Solution Architecture Templates and by modelling solutions at Member States. About two year later, version 5.0.0 of the EIRA has been released, containing upgrades related to the definition of its interoperability viewpoints, ABBs and related examples. The content of the release has been developed through an agile project management approach. Tickets from EC internal and external stakeholders have been analysed in order to address their feedback and requirements.

The new release includes now significant upgrades and can be considered the state-of-the-art in the interoperability domain for the design of end-to-end interoperable digital public services.

Further information about EIRA v5.0.0 can be obtained in the document "EIRA v4.1.0 Online Documentation".

Related release: Cartography Tool v4.1.0

The Cartography Tool (CarTool©) brings together high level support for the EIRA© as a plug-in for the popular ArchiMate® modelling tool Archi®. It includes both editing features, to model solutions using the EIRA©, and querying features to query an EIRA©-based Cartography of solutions.

Owner/Contact Information

European Commission (DG Informatics) - ISA² Programme
Supra-national authority
Contact information


Solution type
Interoperability Specification
Under development


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