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Object

Group

Definition

Explanatory Text

Synonyms

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Target Population
Target Population

Concepts

A Population for which a Statistical Activity is designed to make estimates.

Population for which estimates are desired in a Statistical Activity, though practical considerations may dictate that some units are excluded. If so, the resulting sub-set of units for which information can be obtained is the Survey Population.

object class

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Transformable Input
Transformable Input

Production

A type of Process Input whose content goes into a Process Step and is changed in some way by the execution of that Process Step. Some or all of the content will be represented in the Transformed Output.

Transformable Input is a sub-type of Process Input. Producers of official statistics often conceptualize data (and sometimes metadata) flowing through the statistical business process, having statistical value added by each Process Step and being transformed along the way.

The concept of Transformable Input allows this notional flow of information through the production process to be traced, without confusing these inputs with other inputs - such as Parameter Inputs and Process Support Inputs that are controlling or influencing a particular Process Step but do not "flow through the business process" in the same sense. Typical Transformable Inputs are Data Sets and structural metadata (if changed by a process and needed to describe another output or as an object in their own right).

 

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Transformed Output
Transformed Output

Production

A Process Output (a result) which provides the "reason for existence" for the Process Step.

A Transformed Output is a sub-type of Process Output. Typically a Transformed Output is either a Process Input to a subsequent Process Step or it represents the final product from a statistical business process.

In many cases a Transformed Output may be readily identified as an updated ("value added") version of one or more Transformable Inputs supplied to the Process Step execution.

Note: If the output were no longer required then there would be no need for the Process Step in its current form.

 

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Type
Type

Base

Identifies a narrower meaning for the value in the Contextual String.

 

 

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Object

Group

Definition

Explanatory Text

Synonyms

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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.)

 

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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.

 

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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.

 

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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.

 

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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

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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

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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.

 

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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

 

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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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