This class represents the hierarchical organisation of the data structure of each ITEM within an ENTRY, to permit the nesting or grouping of ELEMENTs with the same obs_time, or of one item_category or to organise rows of tabular data.

Specializes

ITEM

Attributes

Name	Data type	Occurs	Description
structure_type	CS	1..1	This will indicate the time and/or spatial organisation of the data within this CLUSTER. The code set for this attribute is defined in EN 13606-3:2008. The code value of this attribute is constrained by the LRA to being a member of the LraStructureType value set.

Relationships

Name	Class	Occurs	Description
parts	ITEM	0..*	This association permits a CLUSTER to contain other CLUSTERs and/or ELEMENTs.

Constraints

Type	Name	Specification
cluster structure type LRA vocab	LRA Invariant	--The value of attribute name.code.code is a member of the value set LraClusterStructureType. inv: structure_type.code.oclIsTypeOf(LraClusterStructureType)
meaning is undefined	LRA Invariant	--Attribute meaning is undefined (i.e. value assignment is prohibited) inv: meaning.oclIsUndefined()
name value	LRA Inv: Fixed	inv: name.value = <a href="$element://{99CDF407-1579-4eac-BB4F-F9D25CB6AA56}"><font color="#0000ff"><u>LraRecordComponentName</u></font></a>.CLUSTER