The EIRA© high-level viewpoint1 is a viewpoint of the European Interoperability Reference Architecture which models an introductory overview of the focal Architecture Building Blocks of each view.

The EIRA V3.0 High-level viewpoint

It aligns the EIRA© with the service delivery model described within the Interoperability Maturity Model13 (IMM), and the Conceptual model for integrated public services provision of the European Interoperability Framework.

The ABBs included in the high-level viewpoint represent the points that link the EIRA©’s views enabling traceability between their different Architecture Building Blocks. They are not necessarily mandatory but should always be considered by a user of the EIRA© when executing one of its use cases.


This viewpoint selects Architecture Building Blocks from the five different views highlighting the focal building blocks of the EIRA:

  1. The selected Architecture Building Block of the Legal view shows the [Public Policy] which is the mainspring of the solution.
  2. The selected Architecture Building Blocks of the Organisational view shows a [Public Policy] that is implemented by a [Public Service] which can be an aggregation of other [Public Services] serving [Public Service Consumers] and is provided by a [Public Service Provider]. The [Public Service] is realized by a [Business Capability] which can be an aggregation of other [Business Capabilities]. A [Business capability] describes key functions supporting the [Public Service]. An [Exchange of Business Information] accesses [Business Information].
  3. The selected Architecture Building Blocks of the Semantic view shows that the [Exchange of Business Information] is realized by a [Representation] of [Data] which describes interactions between public administrations, businesses, and citizens.
  4. The selected Architecture Building Blocks of the Technical view - application and Technical view - application shows that an [Interoperable European Solution] supports one or more [Public Services] and lets consumers access it via [Machine to Machine Interface] and/or [Human Interface]. An [Interoperable European Solution] exposes one or more [Application Services] via its [Machine to Machine Interfaces] and/or Human Interfaces]. It makes use of [Orchestration Services] and [Choreography Services]. The [Interoperable European Solution] uses [Digital Service Infrastructure] which uses a [Hosting and Networking Infrastructure]. It can also use other [Interoperable European Solutions].
  5. The selected Architecture Building Blocks of the EIF Underlying Principles view show that [Interoperability Specifications] realise [Interoperability Principles], the general intended properties used to achieve interoperability. The interoperability Specifications can be used to define the interoperability aspects for any of the Architecture Building Blocks.

The latest release of the EIRA© is available on Joinup.

Source: European Interoperability Reference Architecture (EIRA version 3) (url) (with information on the 3rd release at the website of the ISA² - Interoperability solutions for public administrations, businesses and citizens).