Describes the degree of similarity between two items or schemes (collections of items). DDI 3.1 The degree of commonality can also be expressed using the machine-actionable elements CommonalityWeight, UserDefinedCorrespondenceProperty, and the descriptive element Commonality. Module Name Element Name comparison CommonalityTypeCoded Creative Commons Attribution-ShareAlike 3 http://creativecommons.org/licenses/by-sa/3.0/ http://i.creativecommons.org/l/by-sa/3.0/80x15.png Copyright © DDI Alliance http://www.ddialliance.org/ 2011 CommonalityType Commonality Type 1.0 urn:ddi-cv:CommonalityType urn:ddi-cv:CommonalityType:1.0 http://www.ddialliance.org/Specification/DDI-CV/CommonalityType_1.0_Genericode1.0_DDI-CVProfile1.0.xml http://www.ddialliance.org/Specification/DDI-CV/CommonalityType_1.0.html http://www.ddialliance.org/Specification/DDI-CV/CommonalityType_1.0_InputSheet_Excel2003.xls DDI Alliance The Alliance for the Data Documentation Initiative DDI Code Value of the Code Term Descriptive Term of the Code Definition Definition of the Code CodeKey The unique identification of each item in a code list. Identical Identical Use when the compared items have identical content. For variables, for example, all the elements of a variable description (name, label, question text, category values and codes, universe, concept) will be identical in form. Some Some Use when the compared items have similar but not identical content. For variables, for example, some of the elements of a variable description (name, label, question text, category values and codes, universe, concept) will be identical in form, while others will be different. None None Normally not used, as it would not be expected to compare items that have nothing in common. This term was necessary to complete the commonality range, and may be used in special cases, as determined by user needs (for instance, when comparability was expected, but not found).