In
metadata, property equivalence is the statement that two properties have the same
property extension or values. This usually (but not always) implies that the two properties have the same
semantic
Semantics (from grc, σημαντικός ''sēmantikós'', "significant") is the study of reference, meaning, or truth. The term can be used to refer to subfields of several distinct disciplines, including philosophy, linguistics and comput ...
s or meaning. Technically it only implies that the data elements have the same values.
Property equivalence is one of the three ways that a
metadata registry
A metadata registry is a central location in an organization where metadata definitions are stored and maintained in a controlled method.
A metadata repository is the database where metadata is stored. The registry also adds relationships with ...
can store equivalence mappings to other metadata registries.
Note that property equivalence is not the same as property equality. Equivalent properties have the same "values" (i.e., the same property extension), but may have different
intension
In any of several fields of study that treat the use of signs — for example, in linguistics, logic, mathematics, semantics, semiotics, and philosophy of language — an intension is any property or quality connoted by a word, phrase, or ano ...
al meaning (i.e., denote different concepts). Property equality should be expressed with the owl:
sameAs
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.
Uses
The concept of sameAs exists in ...
construct. As this requires that properties are treated as individuals, such axioms are only allowed in OWL Full.
See also
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Metadata registry
A metadata registry is a central location in an organization where metadata definitions are stored and maintained in a controlled method.
A metadata repository is the database where metadata is stored. The registry also adds relationships with ...
*
Web ontology language
The Web Ontology Language (OWL) is a family of knowledge representation languages for authoring ontologies. Ontologies are a formal way to describe taxonomies and classification networks, essentially defining the structure of knowledge for vario ...
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Class equivalence
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Synonym Ring
In metadata, a synonym ring or synset, is a group of data elements that are considered semantically equivalent for the purposes of information retrieval. These data elements are frequently found in different metadata registries. Although a group ...
External links
OWL equivalent property definitionOWL same as definition
Metadata
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