Classification

Purpose	The Classification view incorporates the objects required to represent and manage classifications in DDI 4.0.
Description of view	The Classification view covers the structure and description of classifications, the management of classifications, and the relationships amongst classifications.
View status	RELEASE 2
Proposed by	Moving Forward Project

The objects in the Classification view correspond to the GSIM 1.1 concepts of Classification Family, Classification Series, Statistical Classification, Level, Classification Item, Classification Index, Classification Index Entry, Correspondence Table, and Map..

We need to decide whether the Classification Index and Classification Index Entry belong in DDI 4.
Will GSIM 1.1. or XKOS vocabulary be used.

GSIM 1.1	DDI 3.2	SKOS/XKOS
Classification Family	CodeListGroup	skos:Concept
Classification Series	CodeListGroup	skos:Concept
Statistical Classification	CodeList	skos:ConceptScheme
Level	LevelType	xkos:ClassificationLevel
Classification Item	Code and Category	skos:Concept
Classification Index	no mapping	no mapping
Classification Index Entry	Category	no mapping
Correspondence Table	CategoryGroup	xkos:Correspondence
Map	CategoryGroup	xkos:ConceptAssociation