AttributeKey, AttributeValue

Archive, BaseLogicalProduct, BaseRecordLayout, Category, CategoryGroup, CategoryMap, CategoryScheme, CodeList, CodeListGroup, CodeListScheme, Comparison, ComputationItem, Concept, ConceptGroup, ConceptMap, ConceptScheme, ConceptualComponent, ConceptualVariable, ConceptualVariableGroup, ConceptualVariableScheme, ControlConstruct, ControlConstructGroup, ControlConstructScheme, DDIInstance, DDIProfile, DataCollection, DataRelationship, DataSet, GeneralInstruction, GenerationInstruction, GeographicLocation, GeographicLocationGroup, GeographicLocationScheme, GeographicStructure, GeographicStructureGroup, GeographicStructureScheme, Group, IfThenElse, Individual, Instruction, InstructionGroup, Instrument, InstrumentGroup, InstrumentScheme, InterviewerInstructionScheme, LocalGroupContent, LocalHoldingPackage, LocalResourcePackageContent, LocalStudyUnitContent, LogicalProduct, Loop, ManagedDateTimeRepresentation, ManagedMissingValuesRepresentation, ManagedNumericRepresentation, ManagedRepresentation, ManagedRepresentationGroup, ManagedRepresentationScheme, ManagedScaleRepresentation, ManagedTextRepresentation, Methodology, NCube, NCubeGroup, NCubeInstance, NCubeInstance, NCubeInstance, NCubeScheme, Organization, OrganizationGroup, OrganizationScheme, PhysicalDataProduct, PhysicalInstance, PhysicalStructure, PhysicalStructureGroup, PhysicalStructureScheme, ProcessingEvent, ProcessingEventGroup, ProcessingEventScheme, ProcessingInstructionGroup, ProcessingInstructionScheme, QualityStatement, QualityStatementGroup, QualityStatementScheme, QuestionBlock, QuestionConstruct, QuestionGrid, QuestionGroup, QuestionItem, QuestionMap, QuestionScheme, RecordLayout, RecordLayout, RecordLayout, RecordLayout, RecordLayout, RecordLayoutGroup, RecordLayoutScheme, Relation, RepeatUntil, RepeatWhile, RepresentationMap, RepresentedVariable, RepresentedVariableGroup, RepresentedVariableScheme, ResourcePackage, Sequence, StatementItem, StudyUnit, SubGroup, SubUniverseClass, Universe, UniverseGroup, UniverseMap, UniverseScheme, Variable, VariableGroup, VariableMap, VariableScheme, VariableStatistics, Weighting