Page Comparison

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Please refer to the CLOSER GitHub page for more information.

Fields		Description	Required	DDI Documentation
Instrument		Holds information about the instrument (usually a questionnaire)	Yes	https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/item-types/Instrument/
	InstrumentName	Instrument prefix	Yes	https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/item-types/Instrument/
	Agency	The DDI agency identifier for the metadata e.g. uk.alspac, uk.cls.mcs	Yes

InstrumentNameNo

	https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/item-types/Instrument/
	Label				Title of the instrument	Yes

InterviewerInstructionsSchemeQuestion intruction

https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/item-types/Instrument/
	InterviewerInstruction		Question instruction	No	https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/item-types/Instrument/
		LiteralText	Instruction text	No

ControlConstructScheme

https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/item-types/Instrument/
ControlConstruct			Holds all constructs in order they appear in the questionnaire	Yes	https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/item-types/ControlConstruct/
	Sequence		Section of questionnaire which contains other control constructs	Yes	https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/item-types/Sequence/
		ConstructName	Section header

Yes

	https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/item-types/ControlConstruct/
			ConstructLabel		Section header

Yes

https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/item-types/ControlConstruct/
	QuestionConstruct		Holds question construct label, position and interviewee	Yes	https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/item-types/QuestionConstruct/
		ConstructName	Question construct label e.g. qc_1

Yes

	https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/item-types/ControlConstruct/
			ConstructLabel		Question construct name e.g. 1

Yes

	https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/item-types/ControlConstruct/
			ResponseUnit		The person answering the question

YesControlConstructReference

	https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/item-types/QuestionConstruct/
			QuestionReference		Reference to the question

Yes

https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/item-types/QuestionConstruct/
	IfThenElse				No	https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/item-types/IfThenElse/
		ConstructName		Condition label e.g. c_q1		https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/item-types/ControlConstruct/
		Description		Condition text		https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/composite-types/CommandCodeType/
		Command				https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/composite-types/CommandCodeType/
			ProgramLanguage	Program language logic is in		https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/composite-types/CommandType/
			CommandContent	Condition logic		https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/composite-types/CommandType/
	LoopWhile

Yes

			No	https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/item-types/Loop/
		ConstructName		Loop label e.g. l_q1		https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/composite-types/CommandCodeType/
		Command				https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/composite-types/CommandCodeType/
			ProgramLanguage	Program language logic is in		https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/composite-types/CommandType/
			CommandContent	Condition logic		https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/composite-types/CommandType/
	StatementItem				No	https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/item-types/StatementItem/
		ConstructName		Statement label e.g. s_q1		https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/item-types/StatementItem/
		LiteralText		Statement text		https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/item-types/StatementItem/
QuestionScheme				Contains the question items	Yes	Container for Question Types
	QuestionItem			Single question	Yes	https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/item-types/QuestionItem/
		QuestionItemName		Question item label e.g. qi_1

Yes

	https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/composite-types/StandardKeyValuePairType/
			LiteralText		Question text

Yes

	https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/item-types/QuestionItem/
			CodeDomain		Code list response domain

No

https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/composite-types/CodeDomainType/
		CodeListReference	Reference to the code list	https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/composite-types/CodeDomainType/
		ResponseCardinality	Number of options a respondent can select	https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/composite-types/CodeDomainType/
	NumericDomain		Numeric response domain

No

https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/composite-types/NumericDomainType/
		Label	Numeric response domain label	https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/composite-types/NumericDomainType/
		NumericTypeCode	Type of numeric (float or interger)	https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/composite-types/NumericDomainType/
		NumberRange	Min and max range	https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/composite-types/NumericDomainType/
	TextDomain		Text response domain max length

No

https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/composite-types/TextDomainType/
		Label	Text response domain label	https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/composite-types/TextDomainType/
	DateTimeDomain		Date response domain

NoYes

https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/composite-types/DateTimeRepresentationBaseType/
			Label	Date response domain label		https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/composite-types/DateTimeRepresentationBaseType/
			DateTypeCode	Date, time or duration		https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/composite-types/DateTimeRepresentationBaseType/
	QuestionGrid			Matrix of questions	No	https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/item-types/QuestionGrid/
		QuestionGridName		Question grid label e.g. qc_1		https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/item-types/QuestionGrid/
		LiteralText		Question text		https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/item-types/QuestionGrid/
		GridDimension		Contains the structure of the matrix and response domains		https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/item-types/QuestionGrid/
			CodeDomain	Code lists for X and Y axis		https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/composite-types/GridDimensionType/
			StructuredMixedGridResponseDomain	Contains the response domains attached to the grid		https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/composite-types/GridDimensionType/
CategoryScheme					Yes	Container for Categories
	CategoryName			ID of category (auto-generated)		https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/item-types/Category/
	Label			Category text		https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/item-types/Category/
CodeList					Yes	Container for CodeLists
	Label			Code list label		https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/item-types/CodeList/
	Value			Code value

VersionVersion number

https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/item-types/CodeList/

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