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Object

Group

Definition

Explanatory Text

Synonyms

Anchor
Unit
Unit
Unit

Concepts

The object of interest in Statistical Activities and corresponds to at least one Population.

Here are 3 examples - 1. Individual US person (i.e., Arofan Gregory, Dan Gillman, Barack Obama, etc.) 2. Individual US computer companies (i.e., Microsoft, Apple, IBM, etc.) 3. Individual US universities (i.e., Johns Hopkins, University of Maryland, Yale, etc.)

 

Anchor
Unit Attribute Component
Unit Attribute Component
Unit Attribute Component

Structures

 A Represented Variable that is required to supply information in addition to the identification and measures in a Unit Data Set.

 Example: The publication status of an observation such as provisional, revised.

 

Anchor
Unit Data Point
Unit Data Point
Unit Data Point

Structures

A placeholder in a Unit Data Record to contain the value (Datum) for an Instance Variable with respect to a given Unit.

For example (1212123, 43) could be the age in years on the 1st of January 2012 of a person (Unit) with the social security number 1212123. The social security number is an identifying variable for the person whereas the age, in this example, is a variable measured on the 1st of January 2012. The value can be obtained directly from the Unit or indirectly via a process of some kind.

 

Anchor
Unit Data Record
Unit Data Record
Unit Data Record

Structures

Contains the specific values (as a collection of Unit Data Points) related to a given Unit as defined in a Logical Record.

For example (1212123, 48, American, United Kingdom) specifies the age (48) in years on the 1st of January 2012 in years, the current citizenship (American), and the country of birth (United Kingdom) for a person with social security number 1212123.

The Unit Data Record is a collection of Unit Data Points that provide either a complete or restricted view of the state of a Unit as observed over a specific period or at a specific point in time.

 

Anchor
Unit Data Set
Unit Data Set
Unit Data Set

Structures

A collection of data that conforms to a known structure and describes aspects of one or more Units.

Example: A synthetic unit record file is a collection of artificially constructed Unit Data Records, combined in a file to create a Unit Data Set.

micro data, unit data, synthetic unit record file

Anchor
Unit Data Structure
Unit Data Structure
Unit Data Structure

Structures

Describes the structure of a Unit Data Set.

For example (social security number, country of residence, age, citizenship, country of birth) where the social security number and the country of residence are the identifying components (Unit Identifier Component) and the others are measured variables obtained directly or indirectly from the person (Unit) and are Unit Measure Components of the Logical Record.

file description, dataset description

Anchor
Unit Identifier Component
Unit Identifier Component
Unit Identifier Component

Structures

The role that has been given to a Represented Variable, in a Unit Data Structure, to identify the Unit.

For example the person identification number in Norway.

 

Anchor
Unit Measure Component
Unit Measure Component
Unit Measure Component

Structures

The role that has been given to a specific Represented Variable to hold the observed or derived values related to a Unit as identified by the Unit Identifier Components, in an organized collection of data.

For example age and height of a person in a Unit Data Set

 

Anchor
Unit of Measure
Unit of Measure
Unit of Measure

Concepts

Units by which some quantity is measured.

Here are 3 examples - 1. Kilograms; 2. Count; 3. Dollars

 

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Object

Group

Definition

Explanatory Text

Synonyms

Anchor
Value Domain
Value Domain
Value Domain

Concepts

A set of allowed values (determinants). A Value Domain is a Concept System where all Concepts are designated, but in which there are no relations.

Here are 3 examples - 1) Sex codes (enumerated Value Domain)
m, male;
f, female;
o, other
2) Non-negative whole decimal number (described Value Domain) , count of people; 3) Endowment categories (enumerated Value Domain) , dollars:
1, $0-$99,999;
2, $100,000-$999,999;
3, $1,000,000 and above

 

Anchor
Variable
Variable
Variable

Concepts

The use of a Concept as a characteristic of a Population that is intended to be measured as part of a Statistical Activity.

Here are 3 examples - 1. Sex 2. Number of employees 3. Endowment

 

 

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Instance Question