The standard format in which has which has been distributed since 2012 is known as (RF2). It was developed in response to extensive feedback on the original release file format, now known as (RF1), in whichwas which was distributed between its first release in 2002 and 2012. The SNOMED CT International Edition no longer supported or distributed in RF1. However, a conversion tool to general RF1 style files from the RF2 release files is available. The key enhancements inwereenhancements in were: - More robust and consistent version representation;
- Inclusion of a moduleId and module dependency mechanism, which together enable modularization of releases while representing dependencies between modules;
- to provide an extensible and versionable way to configure Including configure Including support for subsets, maps, annotations, alternative hierarchies, etc.;
Use of an addedto added to represent metadata about the structure ofitselfof itself.
In common with the earlier release formatspecifies format specifies files that: Represent the components of : Provide standard representations for subsets, language preferences and maps to other codes and classifications. - Are distributed as tab-delimited text files - which represent character content in accordance with the Unicode UTF-8 specification;
Use | Gloss |
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| Space | true |
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| t | SNOMED CT Identifiers |
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as the permanent of Useas the permanentof released core components; Support to the | Gloss |
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| Space | true |
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| t | International Release |
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using allocated Supportto theusingallocated to licensees to denote the provenance of added components and to ensureuniquenessensure uniqueness.
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