Semantics

Featured content

30/11/2026

Physical event

Save the date: SEMIC 2026 is coming to Dublin on 30 November

Organised by the European Commission’s Directorate-General for Digital Services (DG DIGIT) with the support of the Irish Presidency of the Council of the European Union, SEMIC 2026 will take place on 30 November 2026 under the theme “Interoperable Europe

SemanticsDigital governmentInteroperable Europe policy

Last update: 16/03/2025

SEMIC Support Centre

The Semantic Interoperability Community develops solutions to help European public administrations perform meaningful cross-border and cross-domain data exchanges.

SemanticsStandardisation

Last update: 30/01/2025

Knowledge Hub

The SEMIC knowledge hub provides a collection of resources to tackle interoperability challenges, from reports, studies and guidelines to knowledge-sharing sessions and webinar recordings.

Semantics

Last update: 30/03/2026

Rolling Plan 2026

This space collects the annual versions of the Rolling Plan for ICT standardisation, a document co-developed by the European Commission and the expert group European Multi-Stakeholder Platform on ICT Standardisation (MSP).

Standardisation

Last update: 19/03/2025

Data Spaces

The European Commission adopted a European strategy for data in 2020 which aims at creating a single market for data that will ensure Europe’s global competitiveness and data sovereignty.

Semantics

Last update: 07/05/2026

DCAT Application Profile for data portals in Europe

DCAT-AP is a specification for metadata records, enhancing semantic interoperability across European data portals. Based on W3C's DCAT, it supports standardised dataset descriptions, enabling efficient data exchange and reuse. It is an EC solution.

Standardisation

IN THE SPOTLIGHT

Last update: 16/09/2026

ERA Vocabulary (ERA Ontology)

The ERA Ontology (ERA Vocabulary) is the human- and machine-readable semantic model governed by the European Union Agency for Railways. It formalises the concepts of the EU railway infrastructure register (RINF) and authorised vehicles (ERATV).

SemanticsStandardisationLand transport

Last update: 16/09/2026

Linked Data Event Streams (LDES)

Linked Data Event Streams (LDES) is a technical specification, fostered by the EU Semantic Interoperability Community (SEMIC), that applies linked-data principles to data streams, enabling replication and synchronisation of datasets over the Web.

SemanticsContent and knowledge managementDigital government

Last update: 09/09/2026

EU Vocabularies - Reference Data Catalogue

A section of the EU Vocabularies website, run by the Publications Office of the EU, giving access to 350+ authoritative multilingual reference data and semantic assets used by EU institutions and reusable by Member States and administrations.

SemanticsContent and knowledge managementDigital government

LATEST NEWS

Last update: 01/09/2026

SEMIC 2026: Share your ideas at the Pitching Corner

At this year’s conference in Dublin, the Pitching Corner will give participants a dedicated space to share projects, ideas, solutions, research or initiatives with the community.

SemanticsDigital government

Last update: 24/08/2026

August 2026 highlighted content and updates on the Portal

Discover what is new on the Portal this month. This article highlights newly published solutions, technical releases, key Portal functionalities, and upcoming peer learning events.

Digital governmentSemanticsOpen Source Software

Last update: 06/08/2026

SEMIC 2026: from Dublin to Dublin

SEMIC 2026: from Dublin to Dublin and thirteen years of shaping interoperability in Europe

SemanticsInteroperable Europe policyDigital government