Category Scheme V10

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Revision as of 06:33, 20 February 2021 by Vmurrell (talk | contribs) (Conventions)
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Overview

A Category Scheme is a container for Categories. An example of a category scheme is one which categorises data - sometimes known as subject matter domain scheme or a data category scheme. The individual Categories can be associated to any set of identifiable Artefacts, known as a Categorisation.

Structure Properties

Structure Type Standard SDMX Structural Metadata Artefact
Maintainable Yes
Identifiable Yes
Item Scheme Yes
SDMX Information Model Versions 2.0, 2.1
URN - CategoryScheme namespace urn:sdmx:org.sdmx.infomodel.categorycheme.CategoryScheme
URN - categorisation namespace urn:sdmx:org.sdmx.infomodel.categorycheme.Categorisation

Context within the SDMX 2.1 Information Model

L CategoryScheme.png

The schematic illustrates the core artefacts of the SDMX 2.1 Information Model, and how Category Schemes, Categorys and Categorisations fit in.

Usage

Categories are used within a Category Scheme and has the facility to have one or more child codes as well as being multi-lingual.

The SDMX Cross Domain Concept Scheme provides a range of standardised Concepts maintained by the SDMX Statistical Working Group (SWG) and can be viewed on the Global Registry site https://registry.sdmx.org/items/conceptscheme.html.

More information on Category schemes can be found in this article.

Conventions

Category Scheme IDs IDs are conventionally uppercase using underscores '_' as separators if required. Examples:

Agency Category Scheme ID ID Description SDMX-ML
ESTAT ESA2010TP ESA 2010 - Transmission programme [ https://registry.sdmx.org/ws/public/sdmxapi/rest/categoryscheme/ESTAT/ESA2010TP/1.0 SDMX-ML]
SDMX STAT_SUBJECT_MATTER SDMX Statistical Subject-Matter Domains [ https://registry.sdmx.org/ws/public/sdmxapi/rest/categoryscheme/SDMX/STAT_SUBJECT_MATTER/1.0 SDMX-ML]


You can seem more examples and information on Identities in this article.