Identifies the independent (denominator) and dependent (numerator) dimensions for calculating aggregate measures such as percent.

Identifies the start value for this interval.

Reference to an existing CoordinateRegion using the Reference structure.

The value of the attachment expressed as a string, if not a variable.

An attribute may be any object which should be attached to all or part of the NCube.

This is an abstract structure which serves as a substitution base for current and future LogicalProduct definitions relating to specific data types.

Describes the information needed to identify an individual case within a record type

Case specification allows different unique identifiers to be used based on the value of an identified variable.

A description of a particular category or response.

Contains a group of Category descriptions, which may be ordered or hierarchical.

Name of the Category Group using the DDI Name structure.

Inclusion of a CategoryGroup that allows categories to be grouped with or without hierarchical structure by reference.

Name of the Category using the DDI Name structure.

Describes the relationship between the categories in terms of the significance of order and the distance between categories.

A scheme containing a set of Categories managed by an agency.

Name of the Category Scheme using the DDI Name structure.

A structure that links a unique value of a code to a specified category .

A structure used to associate a list of code values to specified categories.

A grouping of CodeLists for conceptual or administrative purposed.

Name of the Code List Group using the DDI Name structure.

Reference to an existing CodeListGroup using the Reference structure.

Name of the Code List using the DDI Name structure.

A scheme containing sets of CodeLists that are used by reference to define code representations used by value representations and response domains.

Name of the Code List Scheme using the DDI Name structure.

Reference to an existing Category using the Reference structure.

Lists the variables whose values when concatenated result in the value for this variable.

Reference to the variable containing the unique identifier given the conditional value.

Value of variable indicating this record type.

Defines the area of attachment for an NCube attribute.

Describes the relationships among logical records in the dataset.

Name of the Data Relationship using the DDI Name structure.

Identifies the default missing value parameter for the this logical record by referencing a ManagedMissingValuesRepresentation or by stating that there is a default missing values parameter used but it is undocumented.

Use when it is known that a default missing values definition was use but there is NO documentation describing its content.

Reference to an existing Category using the Reference structure.

The rank of a dimension that acts as the numerator (dependent variable).

A dimension is provided a rank and a reference to a variable that describes it.

Defines the included values of a dimension.

Reference to an existing Embargo using the Reference structure.

Reference to the variable containing the unique identifier.

Description of the process used to generate the category content.

Defines the type of hierarchical structure as Regular or Irregular.

Reference to an existing GenerationInstruction or GeneralInstruction using the Reference structure.

Value specifying the increment between categories.

The rank of a dimension that acts as the denominator (independent variable).

Describes the structure, starting point and increment step of an interval.

Used to describe the levels of the code list hierarchy.

Name of the Level using the DDI Name structure.

A module describing the logical (intellectual) contents of the quantitative data.

Name of the Logical Product using the DDI Name structure.

A logical record is a description of all of the elements (variables or NCubes) related to a single case or analysis unit.

Name of the Logical Record using the DDI Name structure.

Defines the structure and type of measure captured within the cells.

Reference to an existing ManagedMissingValuesRepresentation using the Reference structure.

An NCube is a 1..n dimension structure which relates a set of individual values to each other by defining them within a matrix.

Contains a group of NCubes, which may be ordered or hierarchical.

Name of the NCube Scheme using the DDI Name structure.

Reference to an existing NCubeGroup using the Reference structure.

Name of the NCube using the DDI Name structure.

A set of NCubes maintained by an agency and used to structure data items into relational structures.

Name of the NCube Scheme using the DDI Name structure.

Identifies the NCubes and any variables in the record external to NCube structures.

Describes the relationship between records of different types or of the same type within a longitudinal study.

Name of the Record Relationship using the DDI Name structure.

The characteristic value expressed as a string with an indicator of the specific relationship of the variable value to the characteristic value.

Describes a RepresentedVariable contained in the RepresentedVariableScheme.

Contains a group of RepresentedVariables.

Name of the InstructionGroup using the DDI Name structure.

Reference to an existing RepresentedVariableGroup using the Reference structure.

Name of the RepresentedVariable using the DDI Name structure.

Reference to an existing RepresentedVariable using the Reference structure.

A set of RepresentedVariables managed by an agency.

Name of the RepresentedVariableScheme using the DDI Name structure.

Reference to an existing Variable using the Reference structure.

Reference to an existing LogicalRecord using the Reference structure.

Contains a set of variables, one from the source record and one from the target record used as all or part of a link between the source and target records.

The normal source of the information contained in the variable.

Reference to an existing StandardWeight using the Reference structure.

Reference to one or more categories for which the current category is a broader definition.

A reference the variable containing the segment locator and the value being used.

Reference to an existing Variable using the Reference structure.

Reference to an existing LogicalRecord using the Reference structure.

A brief textual description of the type of group created to associate a number of Categories.

A brief textual description of the type of group created to associate a number of code lists.

A brief textual description or classification of the created to associate a number of NCubes.

A brief textual description of the type of group created to associate a number of Instructions.

A brief textual description or classification of the created to associate a number of variables.

Describes the structure of a Variable.

Contains a group of Variables, which may be ordered or hierarchical.

Name of the Variable Group using the DDI Name structure.

Reference to an existing VariableGroup using the Reference structure.

Name of the Variable using the DDI Name structure.

Describes the representation of the variable in the data set.

Describes a specific function of the variable, such as identity, weight, geographic variable, time, date, currency, etc.

Contains a set of Variables and VariableGroups.

Name of the Variable Scheme using the DDI Name structure.

Identifies the variables contained in the logical record.

Reference to an existing Variable using the Reference structure.

A reference the variable containing the record type locator and the value being used.

Identifies the independent (denominator) and dependent (numerator) dimensions for calculating aggregate measures such as percent.

An attribute may be any object which should be attached to all or part of the NCube.

This is an abstract structure which serves as a substitution base for current and future LogicalProduct definitions relating to specific data types.

Describes the information needed to identify an individual case within a record type.

Case specification allows different unique identifiers to be used based on the value of an identified variable.

Contains a group of Category descriptions, which may be ordered or hierarchical.

A scheme containing a set of Categories managed by an agency.

A description of a particular category or response.

A grouping of CodeLists for conceptual or administrative purposed.

A scheme containing sets of CodeLists that are used by reference to define code representations used by value representations and response domains.

A structure used to associate a list of code values to specified categories.

A structure that links a unique value of a code to a specified category and provides information as to the location of the code within a hierarchy, whether it is discrete, represents a total for the CodeList contents, and if its sub-elements represent a comprehensive coverage of the code.

Defines the included values of a dimension by means of individual value references or by defining a range of values to include.

Lists the variables whose values when concatenated result in the value for this variable.

Describes the information needed to identify a specific record or case within a record type.

Value of variable indicating this record type, multiple entries allow for multiple valid values or ranges.

Defines the area of attachment for an NCube attribute.

Describes the relationships among logical records in the dataset.

Identifies the default missing value parameter for the this logical record by referencing a ManagedMissingValuesRepresentation or by stating that there is a default missing values parameter used but it is undocumented.

A dimension is provided a rank and a reference to a variable that describes it.

Reference to the variable containing the unique identifier.

Description of the process used to generate the category content.

Describes the structure, starting point and increment step of an interval.

Used to describe the levels of the code list hierarchy.

A module describing the logical (intellectual) contents of the quantitative data.

A logical record is a description of all of the elements (variables or NCubes) related to a single case or analysis unit.

Defines the structure and type of measure captured within the cells.

Contains a group of NCubes, which may be ordered or hierarchical.

A set of NCubes maintained by an agency and used to structure data items into relational structures.

Identifies the NCubes and any variables in the record external to NCube structures such as case identification variables that are contained in the logical record by indicating that all NCubes contained in the logical product are included, inclusion of a NCubeScheme to include, or listing individual NCubes to include.

An NCube is a 1..n dimension structure which relates a set of individual values to each other by defining them within a matrix.

Describes the relationship between records of different types or of the same type within a longitudinal study.

The characteristic value expressed as a string with an indicator of the specific relationship of the variable value to the characteristic value.

Contains a group of RepresentedVariables, which may describe an ordered or hierarchical relationship structure.

A set of RepresentedVariables managed by an agency.

Describes a RepresentedVariable contained in the RepresentedVariableScheme.

Contains a set of variables, one from the source record and one from the target record used as all or part of a link between the source and target records.

Reference to one or more categories for which the current category is a broader definition.

Contains a group of Variables, which may be ordered or hierarchical.

Describes the representation of the variable in the data set.

Contains a set of Variables and VariableGroups.

Identifies the variables contained in the logical record by indicating that all variable contained in the logical product are included, inclusion of a scheme of variable to include, or listing individual variables to include.

Describes the structure of a Variable.

A reference to the variable containing the record type locator and the value being used.

Describes the nature of additivity for the content.

Identifies the contextual level of an NCube to which the attribute is attached; the full cube, a specific set of coordinates, a full dimension, a specific measurement, or a specific measurement value.

Defines the type of hierarchical structure as Regular or Irregular.

Indicates the values are comprehensive, they cover all possible values.

Indicates the relationship of the value of a source object to a target object.

Indicates the relationship of a source object to a target object.

Defines the sub-category in terms being generic or partitive in nature.