VariableCollection¶
Generalization is InformationObject.
Superclass hierarchy
InformationObject
Definition¶
Collection (group) of any type of variable within the variable cascade (conceptual, represented, instance).
Examples¶
Variables within a specific section of a study, Variables related to a specific subject or keyword. Variables at a specified level of development or review.
Explanatory notes¶
A simple ordered or unordered list of variables can be described via a set of VariableIndicator parameters. An optional VariableStructure can describe a more complex structure for the collection. We might, for example, use the VariableStructure to group variables by content within a Study or across a StudySeries. For the purposes of management, conceptualization or anything other than organizing a logical record or physical layout.
Subclasses¶
Properties¶
Name |
Description |
Data Type |
Multi- plicity |
---|---|---|---|
displayLabel
from VariableCollection
|
A structured display label providing a fully human readable display for the identification of the object. Supports the use of multiple languages and structured text. |
0..* |
|
duplicates
from VariableCollection
|
:ref:`` |
1..1 |
|
groupingSemantic
from VariableCollection
|
A semantic term defining the factor used for defining this group. |
0..1 |
|
name
from VariableCollection
|
A linguistic signifier. Human understandable name (word, phrase, or mnemonic) that reflects the ISO/IEC 11179-5 naming principles. If more than one name is provided provide a context to differentiate usage. |
0..* |
|
purpose
from VariableCollection
|
Explanation of the intent of some decision or object. Supports the use of multiple languages and structured text. |
0..1 |
|
usage
from VariableCollection
|
Explanation of the ways in which some decision or object is employed. Supports the use of multiple languages and structured text. |
0..1 |
Inherited Properties¶
Name |
Description |
Data Type |
Multi- plicity |
---|---|---|---|
agency
from Identifiable
|
Agency expressed as filed with the DDI Agency ID registry [registry.ddialliance.org] with optional additional sub-agency extensions. |
:ref:`` |
1..1 |
id
from Identifiable
|
ID conforming to the allowed structure of the DDI Identifier and must be unique within the Agency. |
:ref:`` |
1..1 |
isPersistent
from Identifiable
|
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
from Identifiable
|
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
from Identifiable
|
Locally used identifier unique with a specified context, such as a variable name within a dataset. |
0..* |
|
version
from Identifiable
|
Version number of the object. |
:ref:`` |
1..1 |
versionDate
from Identifiable
|
Date and time the object was changed expressed in standard ISO formats. |
0..1 |
|
versionRationale
from Identifiable
|
Reason for making a new version of the object. |
0..1 |
|
versionResponsibility
from Identifiable
|
Contributor who has the ownership and responsibility for the current version. |
:ref:`` |
0..1 |
Associations¶
Multiplicity |
Association |
Navigable Class |
Multiplicity |
---|---|---|---|
0..* |
VariableCollection_isDefinedBy_Concept |
0..* |
|
0..* |
VariableCollection_has_VariablePosition |
1..1 |
|
0..* |
VariableCollection_has_ConceptualVariable |
0..* |
TBD
Diagram¶
TBD