Semantic equivalence



In computer metadata, semantic equivalence is a declaration that two data elements from different vocabularies contain data that has similar meaning. There are three types of semantic equivalence statements:



  • Class or concept equivalence. A statement that two high level concepts have similar or equivalent meaning.


  • Property or attribute equivalence. A statement that two properties, descriptors or attributes of a classes have similar meaning.


  • Instance equivalence. A statement that two instances of data are the same or refer to the same instance.



Contents





  • 1 Example


  • 2 See also


  • 3 References


  • 4 External links




Example


Assume that there are two organizations, each having a separate data dictionary. The first organization has a data element entry:


 <DataElement>
<Name>PersonFamilyName</Name>
<Definition>The name of a person shared with other members of their family.</Definition>
<DataElement>

and a second organization has a data dictionary with a data element with the following entry:


 <DataElement>
<Name>IndividualLastName</Name>
<Definition>The name of an individual person shared with other members of their family.</Definition>
<DataElement>

these two data elements can be considered to have the same meaning and can be marked as semantically equivalent.



See also


  • Logical equivalence

  • Metadata

  • Vocabulary-based transformation


  • Web Ontology Language (OWL)


References


  • World Wide Web OWL Language Reference


  • Universal Data Element Framework Web Site Semantic Equivalency for Standards and Integrations


External links


  • OWL definition of Class Equivalency

  • OWL definition of Property Equivalency


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