An abstract or brief summary of the document.

Describes the region of an image, recording, or text where an action where a specified action is performed and the type of action taken.

Use for coordinates obtained through address matching only.

The agency expressed as filed with the DDI Agency Registry with optional additional sub-agency extensions.

Reference to an existing Organization or Individual using the Reference structure.

Identification of the type of aggregation method used.

This is a string of type xs:NMTOKEN and can contain no spaces.

Allows collection of data for a case in a different coordinate system than stated in the response structure.

Allows identification of an alternate object when the default object is not measurable.

Allows entry of a non-standard offset figure.

The alternate title expressed using an International String to support multiple language versions of the same content.

A brief textual description or classification of the unit of analysis.

A description of the types of analysis units covered expressed using an International String to support multiple language versions of the same content.

Allows for the attachment of a category label at any anchor point in a scale.

Date materials submitted for approval review.

Date approval received from approval review organization.

Provides information about the Approval Review undertaken in relation to the activity.

Link to a document related to the approval review using the OtherMaterial structure.

Reference to an existing approval review document description.

Reference to an existing approval review description.

Period for which the approval is valid.

Reference to an existing Archive using the Reference structure.

Use to specify the area of land, water, total or other area coverage in terms of square miles/kilometers or other measure.

The area measure expressed as a decimal for the measurement unit designated.

The ArrayBase expressed as an xs:integer.

The key (sometimes referred to as a name) in a key/value pair.

Reference to an existing Attribute using the Reference structure.

The value for a key/value pair.

Describes the type and length of the audio segment.

The point to begin the audio clip.

The point to end the audio clip.

Identifies the authorizing agency.

Description and link to the Information Classification policy using the DDI Other Material structure.

Description and link to the Authorized Source using the DDI Other Material structure.

A reference to the Authorized Source of the value described in a GeographicLocationScheme or GeographicStructureScheme.

Reference to an existing Organization or Individual using the Reference structure.

BasedOnObject may contain references to any number of objects which serve as a basis for this object, a BasedOnRationalDescription of how the content of the referenced object was incorporated or altered, and a BasedOnRationalCode to allow for specific typing of the BasedOnReference according to an external controlled vocabulary.

Classification of the rationale for a new object based on an existing object.

A description of the rationale for the new variable based on another object using an International String to support multiple language versions of the same content.

A reference to an object which the object being described here is based upon using a standard Reference structure.

A structure used to bind the content of a parameter declared as the source to a parameter declared as the target.

Indicates that any response equal to or less than this value has been coded as the bottom-code value.

Indicates that any response equal to or less than this value has been coded as the bottom-code value.

Set of north, south, east, west coordinates defining a rectangle

A closed plane figure bounded by three or more line segments, representing a geographic area.

A description of the budget that can contain a reference to an external budget document.

Description and link to the Budget Document using the DDI Other Material structure.

Specifies the type of calendar used (e.g., Gregorian, Julian, Jewish).

Reference to an existing Category using the Reference structure.

Reference to a CategoryScheme using SchemeReference which allows for the specification of objects to exclude.

A characteristic which defines the area.

Specification of the character offset for the beginning and end of the segment.

Identification of the character set used in the referenced file.

Provides a bibliographic citation using a DDI structure that maps to Dublin Core objects.

Reference to an existing Classification Correspondence Table using the Reference structure.

Reference to an existing ClassificationFamily using the Reference structure.

Reference to an existing ClassificationSeries using the Reference structure.

Reference to an existing CodeList using the Reference structure.

Reference to a CodeListScheme using SchemeReference which allows for the specification of objects to exclude.

References the Code within a CodeList using the Reference structure.

Defines the representation of a variable as coded values using a set or subset of codes from a CodeList.

Allows further specification of the codes to use from the CodeList.

The algorithm used to determine the sort order of the text content. this includes whether the text is left to right, right to left, handling of spaces and capitalization, and ordering of text characters.

This is an in-line provision of the command itself and information regarding its use.

Content of the command itself expressed in the language specified in the parent object.

The CommandContent expressed as an xs:string.

Identifies and provides a link to an external copy of the command.

Reference to an existing Comparison using the Reference structure.

Allows for a quality statement based on frameworks to be described using itemized properties.

A reference to a concept which relates to an area of coverage of the standard using the ReferenceStructure.

Provides a list of quality concepts in the quality standard.

Compliance Description provided using a StructuredString to support multiple language versions of the same content as well as optional formatting of the content.

Specifies what is required to be seen as in compliance with the Standard.

Describe the measures taken to comply with the standards and/or specific levels of compliance by providing further details or a general description of compliance with the standard.

A stack of LocationValueReferences to each of the locations of the specified PrimaryComponentLevel type that make up the Component Area.

Reference to an existing Concept using the Reference structure.

Reference to a ConceptScheme using SchemeReference which allows for the specification of objects to exclude.

Reference to an existing ConceptualComponent using the Reference structure.

Includes a description of an individual ConceptualVariable by reference.

Reference to a ConceptualVariableScheme using SchemeReference which allows for the specification of objects to exclude.

Supports the optional use of XHTML formatting tags within the string structure.

Identifies the difference between the date applied to the data as a whole and this specific item.

Holds the name of the contributor, their role, and optional reference to the contributor as described within a DDI Organization scheme.

Full name of the individual or organization.

Reference to an existing Organization or Individual using the Reference structure.

A brief textual description or classification of the role of the contributor.

Reference to a ControlConstructScheme using SchemeReference which allows for the specification of objects to exclude.

Field to capture coordinate pairs as individual pairs or as an array of pairs.

A comma-delimited list of x,y coordinates, listed as a set of adjacent points for rectangles and polygons, and as a center-point and a radius for circles (x,y,r).

The standard coordinate source being used.

The standard coordinate system used.

The value of the coordinate expressed as a string.

The standard coordinate zone being used.

Copyright information expressed using an International String to support multiple language versions of the same content.

Use of a Controlled Vocabulary is strongly recommended.

Describes the temporal, spatial and topical coverage.

Any limitation in the coverage of the geographic structure expressed using an International String to support multiple language versions of the same content.

Holds the name of the creator and/or a reference to the creator as described within a DDI Organization scheme.

Full name of the individual or organization.

Reference to an existing Organization or Individual using the Reference structure.

Use to indicate occurrence of this range within a series of ranges as an integer identifying the cycle, i.e. the 4th wave of a data collection cycle would have 4.

Reference to an existing DataCollection using the Reference structure.

Description of the rules regarding what encryption level is needed on the data.

Use when only the lowest, most discrete codes in the CodeList will be expressed as valid values.

Description of the rules applied to any individual with access to the data, e.g. security clearance, confidentiality agreements, or authentication.

Includes a description of a DataRelationship by reference.

Description of the rules regarding how data is allowed to be stored.

Description of the rules regarding how data is allowed to be transferred.

A single point in time, a duration, or a time range with start and/or end dates.

The format of the date filed.

A value representation for a variable expressed as a date and or time.

Reference to an existing ManagedDateTimeRepresentation using the RepresentationReference structure.

This is a standard XML date type code and supports the use of an external controlled vocabulary.

The standard datum format used.

Reference to an existing DDIProfile using the Reference structure.

Defines the data type to use unless otherwise specified.

The DefaultDecimalPositions expressed as an xs:integer.

The character used to separate whole numbers from decimals expressed as a one character string.

Defines the default value for the delimiter used to separate variables in a delimited record.

The character used to separate the component of whole numbers (thousands, millions, etc.) expressed as a one character string.

This provides a default value for the parameter if the parameter supplies only empty content or is otherwise unavailable.

Reference to a VariableScheme using SchemeReference which allows for the specification of objects to exclude.

Use to attach one or more characteristics to the parent object.

Reference to an existing Concept using the Reference structure.

Description provides additional detailed information regarding the element.

References to a set of development activities maintained by an agency, and used in the creation of data capture objects (Measurements, Questions, Instruments, and Control Constructs).

Description of the difference between two objects.

Identifies the point at which the scales of a multidimensional scale intersect.

A dimension describes the rank or order of the dimension within the NCube structure and provides the specific coordinate value of the dimension for the data item.

Use for an irregular hierarchy where the most discrete codes have been identified by attribute isDiscrete.

Defines they layout such as containing a drawn scale line, a list of values only, an outline (the boundaries of the area defined by 2 or more intersecting scales such as a diamond of opposites), or some other layout design.

Description of the rules regarding when and how data should be disposed.

Identifies the total value to be distributed among the designated objects.

Longitude values expressed as a decimal between the values of -180 and 180 degrees.

Clarifies when the identification information is accurate.

A brief textual description or classification of the e-mail address type.

Provides information about data that are not currently available because of policies established by the principal investigators and/or data producers.

Name of the Embargo using the DDI Name structure.

Number of characters from the beginning of the document, indicating the inclusive end of the text segment.

End date of a date range.

Number of lines from beginning of the document.

Number of characters from the start of the line specified in EndLine.

Reference to an existing Organization or Individual using the Reference structure.

The standard method of error correction being used.

Describes the process of the Evaluation.

Identifies the evaluator and specifies the role of the evaluator using an external controlled vocabulary.

Reference to an existing Organization or Individual using the Reference structure.

Describes the role of the evaluator with optional use of a controlled vocabulary.

A brief textual description or classification of the lifecycle event.

Reference to any identifiable object within the scheme that should be excluded for the current use of the parent scheme.

Reference to an existing GeographicLevel using the Reference structure.

Reference to an existing GeographicLocation using the Reference structure.

A closed plane figure bounded by three or more line segments, representing a geographic area.

Evaluation for the purpose of reviewing the study, data collection, data processing, or management processes.

References an external, non DDI category.

Defines the values of a representation based on a categorization that is external to DDI, for example, a category list for occupations or geography.

Specification of a code which relates to an area of coverage of the standard.

Note that ExternalURI points to the boundary file location.

Contains a URL which indicates the location of the cited external resource.

Contains a URN which identifies the cited external resource.

A brief textual description of a function handled by the software.

A brief textual description or classification of the funder's role.

Link to a document related to the funding such as application or funding announcement using the OtherMaterial structure.

Reference to an existing funding document description.

Provides information about the agency and grant(s) which funded the described entity.

Dates for which the funding is provided.

Expresses the variety of data formats covered i.e.

Provides the output format of the data object in a generic way, i.e., numeric, character, dateTime, etc.

A choice of a BoundingBox and/or a set of BoundingPolygons and ExcludingPolygons that describe an area for a specific time period.

The GeographicCode expressed as an xs:string.

Reference to an existing GeographicLevel using the Reference structure.

Describes a level within the GeographicStructure.

An identifying code for the level of geography being described, i.e., Country, State, or 010, 040.

A description of the Geographic Level.

Name of the Geographic Level using the DDI Name structure.

Reference to an existing GeographicLevel using the Reference structure.

Describes specific instances of GeographicLocations associated with a specified GeographicLevel in a GeographicStructure.

Defines the representation of a variable that provides geographic location information as named or coded values using a set or subset of names or codes from a GeographicLocationScheme.

Describes the GeographicLocation as represented by a specific GeographicCode provided by an Authorized Source.

Name of the Geographic Location Scheme using the DDI Name structure.

Reference to an existing GeographicLocation using the Reference structure plus the ability to exclude any number of contained location values as specified by reference.

Reference to a GeographicLocationScheme using SchemeReference which allows for the specification of objects to exclude.

Contains information on the hierarchy of the geographic structure.

Defines the representation of a variable that provides geographic structure information as coded values using a set or subset of codes from a GeographicStructureScheme.

Name of the Geographic Structure using the DDI Name structure.

Reference to an existing GeographicStructure using the Reference structure plus the ability to exclude any number of contained GeographicLevels as specified by reference.

Reference to a GeographicStructureScheme using SchemeReference which allows for the specification of objects to exclude.

The date (and, optionally, time) of a specific geographic value (code).

Reference to an existing Variable using the Reference structure.

The standard object for which the geographic coordinates are being captured.

The identification code of the grant or other monetary award which provided funding for the described object.

Reference to an existing Group using the Reference structure.

A header or label information expressed using an International String to support multiple language versions of the same content.

The upper bound of the number range.

The upper bound of the number range.

Contains a Reference to a GeographicLevel if available and a name for the level.

A date expressed in a historical date format, according to a system specified in the HistoricalDateFormat attribute.

The structure of a non-ISO formatted date.

End date of a date range, expressed in a historical date format, according to a system specified in the HistoricalDateFormat attribute.

Start date of a date range, expressed in a historical date format, according to a system specified in the HistoricalDateFormat attribute.

ID of the object expressed according to the DDI ID definition.

The IdentifierContent expressed as an xs:string.

Provides structural information for parsing the identification code structure of the Authorized Source into its separate parts.

A reference to an image, with a description of its properties and type.

Defines the shape and area of an image used as part of a location representation.

A reference to the location of the image using a URI.

Provides a reference to a location or locations that define the immediate parent of described LocationValue within the specified Geographic Structure Hierarchy as well as the GeographicTime of the relationship.

Specifies the codes to include in the representation.

List by repetition all dimensions intersecting at this value by Dimension Number.