Interoperability in ESCO

Interoperability, as defined in the context of the Interoperability Europe Act, refers to the ability of organisations, as well as the systems and services they use, to interact towards mutually beneficial goals. This interaction involves the sharing and exchange of information and knowledge in a way that enables effective communication, coordination and reuse across different sectors and administrative levels. Interoperability encompasses not only technical aspects, but also semantic, organisational and legal dimensions, ensuring that data can be understood and used consistently across contexts.

Interoperability in ESCO refers to the ability of systems and stakeholders to exchange and interpret data related to skills and occupations in a consistent and meaningful way. It enables ESCO to function as a common reference framework across different platforms and contexts within the European labour market.

Interoperability in ESCO operates at two complementary levels: semantic interoperability and interoperability between systems, in particular with platforms such as Europass and EURES.

Semantic Interoperability

Semantic interoperability ensures that the meaning of data is preserved and consistently understood across systems. In the context of ESCO, it concerns the shared interpretation of concepts such as skills and occupations.

ESCO provides a structured and multilingual classification of occupations, skills and competences. These concepts are defined independently of national classifications but can be linked to them, allowing ESCO to function as a common semantic reference across systems.

Concepts in ESCO are represented in a machine-readable format and are connected through semantic relationships. Occupations are linked to the skills they require, and skills and competences are organised in hierarchical structures. This organisation supports consistent interpretation, reuse of data, and alignment across different applications.

Each ESCO concept is assigned a unique identifier (URI), ensuring that it can be referenced across systems and remains stable over time, regardless of changes in terminology or language.

ESCO is available in multiple languages and ensures alignment of concepts across them. This goes beyond simple translation by maintaining conceptual equivalence. Multilingualism is essential for cross-border use cases, including job matching and labour mobility.

Together, these features enable ESCO to provide a coherent and interoperable semantic layer for labour market data.

Interoperability with Europass and EURES

ESCO provides the semantic framework that enables Europass and EURES to exchange and interpret data coherently. Because both platforms rely on ESCO, profiles created in Europass can be used directly in EURES, supporting efficient and scalable job matching.

This interoperability also extends across languages. Users can describe their skills in their own language in Europass, and these are linked to ESCO concepts aligned across languages. As a result, profiles can be matched with job vacancies in other countries without requiring manual translation.

More broadly, the interaction between ESCO, Europass and EURES forms a continuous exchange. ESCO provides the structure for describing and matching skills and occupations, while data generated through Europass and EURES contributes to its ongoing refinement. This creates a feedback loop between classification and real-world application.