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SNOMED CT® Release Format 1 (RF1) Guide - ihtsdo

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202 | <strong>SNOMED</strong> CT <strong>Release</strong> <strong>Format</strong> 1 (<strong>RF1</strong>) <strong>Guide</strong> July 2012<br />

<strong>RF1</strong> Relationships Table<br />

<br />

<strong>RF1</strong> does not support identification of<br />

separate modules.<br />

Relationships.ConceptId1<br />

Relationships.RelationshipType<br />

Relationships.ConceptId2<br />

Relationships. CharacteristicType<br />

• 0 (Defining):<br />

• Inferred - in Relationships Table<br />

• Stated - in separate Stated<br />

Relationships Table<br />

• 1 (Qualifying).<br />

• 2 (Historical).<br />

• 3 (Additional).<br />

Relationships. Refinability<br />

<br />

3.2.9.8. Database View of Distribution Files<br />

3.2.9.8.1. Introduction<br />

RF2 Relationship File<br />

Relationship.moduleId<br />

Relationship.sourceId<br />

Relationship.typeId<br />

Relationship. destinationId<br />

Relationship. characteristicTypeId<br />

• |Inferred relationship|;<br />

• |Stated relationship|;<br />

• |Qualifying relationship|;<br />

• |Additional relationship|.<br />

Represented by the | Relationship refinability attribute value<br />

reference set (foundation metadata concept) |.<br />

modifierId<br />

The tables in this section provide technical details that could be used to develop a database schema for<br />

representing all <strong>SNOMED</strong> CT distribution files. The tables in this section provide a limited set of technical<br />

information about each of the fields in the <strong>SNOMED</strong> CT distribution files. The tables also make<br />

recommendations about additional keys, which may be necessary to support an effective implementation in<br />

a relational database without restructuring the distributed data. However, this information is advisory only<br />

and is not a specification of requirements or a recommendation. Alternative approaches based on restructuring<br />

the distributed data may provide a more efficient and responsive method of implementation.<br />

Refer to the specification documents for details about the use and possible values of each field.<br />

3.2.9.8.2. Tables<br />

© 2002-2012 International Health Terminology Standards Development Organisation CVR #: 30363434

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