A column of a table. Other terms are variable or data item. Equivalent class in Disco: Variable Disco documentation: http://rdf-vocabulary.ddialliance.org/discovery.html#variable-and-variable-definition Equivalent element in DDI 3.2: l:Variable DDI 3.2 Documentation: http://www.ddialliance.org/Specification/DDI-Lifecycle/3.2/XMLSchema/FieldLevelDocumentation/schemas/logicalproduct_xsd/elements/Variable.html