In data science, sameAs or exactMatch is a method of indicating that the subject of, or entity represented by, two resources is considered to be one and the same thing. It is a key part of the Semantic Web.
The concept of sameAs exists in a number of different schemas and systems:
owl:sameAsskos:exactMatchThe owl:sameAs predicate has been described as "an essential ingredient of the Semantic Web architecture".