ApprovalReview, ApprovalReviewDocument, Archive, BaseLogicalProduct, BaseRecordLayout, Category, CategoryGroup, CategoryMap, CategoryScheme, ClassificationCorrespondenceTable, ClassificationFamily, ClassificationIndex, ClassificationItem, ClassificationLevel, ClassificationSeries, CodeList, CodeListGroup, CodeListScheme, CognitiveExpertReviewActivity, CognitiveInterviewActivity, Comparison, ComputationItem, Concept, ConceptGroup, ConceptMap, ConceptScheme, ConceptualComponent, ConceptualVariable, ConceptualVariableGroup, ConceptualVariableScheme, ContentReviewActivity, ControlConstruct, ControlConstructGroup, ControlConstructScheme, DDIInstance, DDIProfile, DataCaptureDevelopment, DataCollection, DataRelationship, DataSet, DevelopmentActivity, DevelopmentActivityGroup, DevelopmentActivityScheme, DevelopmentImplementation, DevelopmentPlan, DevelopmentResults, DevelopmentStep, FocusGroupActivity, FundingDocument, GeneralInstruction, GenerationInstruction, GeographicLocation, GeographicLocationGroup, GeographicLocationScheme, GeographicStructure, GeographicStructureGroup, GeographicStructureScheme, Group, IfThenElse, Individual, InformationClassification, Instruction, InstructionGroup, Instrument, InstrumentGroup, InstrumentScheme, InterviewerInstructionScheme, LocalGroupContent, LocalHoldingPackage, LocalResourcePackageContent, LocalStudyUnitContent, LogicalProduct, Loop, ManagedDateTimeRepresentation, ManagedItemMap, ManagedMissingValuesRepresentation, ManagedNumericRepresentation, ManagedRepresentation, ManagedRepresentationGroup, ManagedRepresentationScheme, ManagedScaleRepresentation, ManagedTextRepresentation, MeasurementConstruct, MeasurementGroup, MeasurementItem, MeasurementScheme, Methodology, NCube, NCubeGroup, NCubeInstance, NCubeInstance, NCubeInstance, NCubeScheme, Organization, OrganizationGroup, OrganizationScheme, OtherMaterial, OtherMaterialGroup, OtherMaterialScheme, PhysicalDataProduct, PhysicalInstance, PhysicalInstanceGroup, PhysicalStructure, PhysicalStructureGroup, PhysicalStructureScheme, PretestActivity, ProcessingEvent, ProcessingEventGroup, ProcessingEventScheme, ProcessingInstruction, ProcessingInstructionGroup, ProcessingInstructionScheme, QualityScheme, QualityStandard, QualityStandardGroup, QualityStatement, QualityStatementGroup, QuestionBlock, QuestionConstruct, QuestionGrid, QuestionGroup, QuestionItem, QuestionMap, QuestionScheme, RecordLayout, RecordLayout, RecordLayout, RecordLayout, RecordLayout, RecordLayoutGroup, RecordLayoutScheme, Relation, RepeatUntil, RepeatWhile, RepresentationMap, RepresentedVariable, RepresentedVariableGroup, RepresentedVariableScheme, ResourcePackage, Sample, SampleFrame, SampleStep, SamplingInformationGroup, SamplingInformationScheme, SamplingPlan, SamplingStage, Sequence, Split, SplitJoin, StatementItem, StatisticalClassification, StudyUnit, SubUniverseClass, TranslationActivity, UnitType, UnitTypeGroup, UnitTypeScheme, Universe, UniverseGroup, UniverseMap, UniverseScheme, Variable, VariableGroup, VariableMap, VariableScheme, VariableStatistics, Weighting, WeightingMethodology