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Hierarchy refers to the classification structure where a classification is arranged in levels of detail from the broadest to the most detailed level. Each level of the classification is defined in terms of the categories at the next lower level of the classification.

In SDMX this is known as a level based hierarchy. SDMX also has the concept of the value based hierarchy where the hierarchy of categories is not organised into formal levels.

Source Publication:
"United Nations Glossary of Classification Terms" prepared by the Expert Group on International Economic and Social Classifications; unpublished on paper.


Statistical Theme: Methodological information (metadata)

Glossary Output Segments:

Created on Thursday, November 14, 2002

Last updated on Wednesday, February 1, 2006