Code

Generalization is Identifiable.

Superclass hierarchy

Definition

Sign for which the Signifier is non-linguistic alphanumeric string.

Examples

The letter M might stand for the category Male in the CodeList called Gender.

Explanatory notes

A non-linguistic alphanumeric string is one which does not correspond to a word in natural language. For use in a Code List. The representation property (Value) is expressed as it would be found in a data file. Multiple representations may relate to the same Category but should be expressed as separate Codes.

It should not be confused with a ClassificationItem which is a placeholder for a position in a StatisticalClassification. It contains a Designation, for which Code is a kind; a Category; and other things. For example, in 2012 NAICS (North American Industry Classification System) one Classification Item has the Code 23 and the Category construction.


Subclasses


Properties

Name

Description

Data Type

Multi- plicity

notation
from Code

TypedString

0..*

Inherited Properties

Name

Description

Data Type

Multi- plicity

agency

Agency expressed as filed with the DDI Agency ID registry [registry.ddialliance.org] with optional additional sub-agency extensions.

:ref:``

1..1

id

ID conforming to the allowed structure of the DDI Identifier and must be unique within the Agency.

:ref:``

1..1

isPersistent

Default value is false indicating that the content of the current version may change (may be in development mode). Set to true when the content of this version will no longer change.

:ref:``

1..1

isUniversallyUnique

Default value is false. If the id of the object was created as a Universally Unique ID (UUID) set to true.

:ref:``

1..1

localId

Locally used identifier unique with a specified context, such as a variable name within a dataset.

LocalIdFormat

0..*

version

Version number of the object.

:ref:``

1..1

versionDate

Date and time the object was changed expressed in standard ISO formats.

XSDdate

0..1

versionRationale

Reason for making a new version of the object.

RationaleDefinition

0..1

versionResponsibility

Contributor who has the ownership and responsibility for the current version.

:ref:``

0..1

Associations

Multiplicity

Association

Navigable Class

Multiplicity

0..*

Code_uses_Notation

Notation

1..1

0..*

Code_denotes_Category

Category

1..1

TBD

Diagram

TBD