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Overview

In this chapter, we describe the logical design of the SNOMED CT MRCM.

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The figure below illustrates the major components of the MRCM described above.

Details

The figure below illustrates the logical design of the SNOMED CT MRCM using a UML class diagram.

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Each attribute rule is associated with a specific rule strength (e.g.

Concept
t 723597001|Mandatory concept model rule|

) and content type (e.g.

Concept
t 723596005|All SNOMED CT content|

). An Attribute Rule may either associate an attribute with the domains to which it may be applied (i.e. an Attribute Domain Rule), or it may associate an attribute with the range of valid concepts that may be used as its value (i.e. an Attribute Range Rule). Attribute Domain Rules also define whether or not each attribute is considered to be grouped (by a Description Logic reasoner) for the given domain, and the attribute cardinalities for that domain. page-break