Purpose
An 
allows attributes to be associated with the in which they may be applied. It also allows grouping and cardinality constraints to be specified for each attribute and domain combination. For each attribute-domain rule, the strength of the rule (e.g. 
or 
) and the content type over which this rule applies (e.g. 
, 
) is also specified.
Each attribute is identified by its concept id, while each domain is identified by the same concept id used in the referencedComponentId of the 
.
Data Structure
An is in the following table.
Metadata
The following metadata hierarchy supports this reference set:
Please note that the hierarchy is designed using 'universal restriction' logic. The hierarchy may therefore appear to be 'upside down'. However, it was designed in this way because if an MRCM rule applies to  then it also applies to the Content Types that are a supertype of this - including  and  .
|
Descriptor Template
The table below shows the reference set descriptor for a reference set that follows the pattern.
refsetId | referencedComponentId | attributeDescription | attributeType | attribute Order |
|---|
| | | | 0 | | | | | 1 | | | | | 2 | | | | | 3 | | | | | 4 | | | | | 5 | | | | | 6 |
|
Example Data The table below shows some example rows from a reference set that follows the format of the .
refsetId | referencedComponent Id | domainId | grouped | attribute Cardinality | attribute InGroup
Cardinality | ruleStrengthId | contentTypeId |
|---|
| | | 1 | 0..* | 0..* | | | | | | 1 | 0..* | 0..* | | | | | | 1 | 0..* | 0..1 | | | | | | 0 | 0..1 | 0..0 | | |
|
|