CaseIdentification

Package: 
Is Abstract: 
no
Is Pattern: 
no
Definition: 

Describes the information needed to identify an individual case within a record type. This may be the variable or concatenated variable used to identify a unique case of a particular record type. Often referred to as a unique key. There may be more than one means of identifying a record. For example a US Census Summary File has a LogicalRecordIdentifer that is unique to the original file within which it was published. A specific geography has a set of fields that uniquely identify it.

Property: 
NameCardinalityDatatypeDescription
isPrimary
0..1
Indicates whether the case identifier is the primary key.
Relationship: 
NameTarget ObjectDescriptionSource cardinalityTarget cardinalityRelationship type
fixedIdentifier
Reference to the variable containing the unique identifier. This may be a concatenated variable which indicates the combination of variable required to create a unique identification. If more than one variable reference is included the combination of the variable field contents must be unique and all variables are required for case identification.
1..1
1..1
Aggregation
conditionalIdentifier
Describes the information needed to identify a specific record or case within a record type. Repeating the field allows multiple means of identifying a case referencing multiple variables.
1..1
1..1
Aggregation

Stage:

DDI 3.2: 
l:CaseIdentificationType
Is extendable: 
Is property: 
0
RDF Mapping: