Universe¶
Generalization is Concept.
Superclass hierarchy
Definition¶
Specialized unit type, with the specialization based upon characteristics other than time and geography.
Examples¶
Canadian adults (not limited to those residing in Canada)
Computer companies
Universities
Explanatory notes¶
Universe sits in a hierarchy between UnitType and Population, with UnitType being most general and Population most specific. A Universe is a set of entities defined by a more narrow specification than that of an underlying UnitType. A Population further narrows the specification to a specific time and geography.
If the Universe consists of people, a number of factors may be used in defining membership in the Universe, such as age, sex, residence, income, veteran status, criminal convictions, etc. The universe may consist of elements other than persons, such as housing units, court cases, deaths, countries, etc. A universe may be described as “inclusive” or “exclusive”.
Not to be confused with Population, which includes the specification of time and geography.
Subclasses¶
Properties¶
Name |
Description |
Data Type |
Multi- plicity |
---|---|---|---|
descriptiveText
from Universe
|
A short natural language account of the characteristics of the object. |
0..1 |
|
isInclusive
from Universe
|
Default value is True. The description statement of a universe is generally stated in inclusive terms such as “All persons with university degree”. Occasionally a universe is defined by what it excludes, i.e., “All persons except those with university degree”. In this case the value would be changed to “false”. |
:ref:`` |
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 |
definition
from Concept
|
Natural language statement conveying the meaning of a concept, differentiating it from other concepts. Supports the use of multiple languages and structured text. |
0..1 |
|
displayLabel
from Concept
|
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..* |
|
name
from Concept
|
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..* |
Associations¶
Multiplicity |
Association |
Navigable Class |
Multiplicity |
---|---|---|---|
0..* |
Universe_uses_Concept |
0..* |
|
0..* |
Universe_narrows_UnitType |
0..1 |
TBD
Diagram¶
TBD