Define the concept of "ontology alignment"

[matentzn]

Discuss here.

[jonquet]

In the domain the reference definition is

[Euzenat & Shvaiko, Ontology Matching, Springer, 2nd ed., 2013]

“Ontology alignment is the process of determining correspondences between concepts in different ontologies.”

More precisely, the book defines it as:

“Given two ontologies O₁ and O₂, an alignment A between O₁ and O₂ is a set of correspondences between entities of O₁ and O₂. Each correspondence expresses a relation holding between entities (such as equivalence, subsumption, or disjointness) possibly associated with a confidence measure.”

[jonquet]

The key idea is that an alignment is a set of correspondences.

Personally, I was not a fan of the FAIRCORE4EOSC and FAIR-IMPACT definition of crosswalk as a set of mappings because to me we already had "alignment" for this.
But this was not my call.

[matentzn]

Thanks @jonquet I fully support the suggestion to use Euzenat & Shvaiko to define Ontology Alignment.