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DATA STRUCTURE DEFINITION

Statistics Directorate    
Definition:
Set of structural metadata associated to a data set, which include information about how concepts are associated with the measures, dimensions, and attributes of a data cube, along with information about the representation of data and related descriptive metadata.

Context:
In order to exchange statistical information, a central institution has to agree with its partners about which statistical concepts are necessary for identifying the series (and for use as dimensions) and which statistical concepts are to be used as attributes. These definitions form the data structure definition (also called “key family” in Gesmes/TS).

The coded statistical concepts assigned as dimensions in a key structure are called the dimensions of the key family. In addition to the dimensions, each data structure definition assigns a set of statistical concepts that may qualify the statistical information at data set, sibling group, time series or observation level. The statistical concepts used in this way are called “attributes”.

Each data structure definition has the following properties:

a) identifier (providing a unique identification within an exchanged time series);

b) name (also unique); and

c) description (a description of the purpose and domain covered).

Source Publication:
European Central Bank (ECB), Bank for International Settlement (BIS), Eurostat, International Monetary Fund (IMF), Organisation for Economic Co-operation and Development (OECD), "GESMES/TS User Guide", Release 3.00, February, 2003; unpublished on paper.

Cross References:
Attribute
Cross-domain metadata concepts
Definition, structural
Dimension (dimensionality)
GESMES TS
Key structure
Statistical concept

Hyperlink:
http://www.ecb.int/home/html/index.en.html

Statistical Theme: Methodological information (metadata)

Glossary Output Segments:
SDMX

Created on Tuesday, September 25, 2001

Last updated on Tuesday, June 11, 2013