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Glossary O

              A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

ONS Geography

ONS Geography is the geographic support service of the Office for National Statistics (ONS).
Further information on ONS Geography.

ONS Geography User Guide

The ONS Geography User Guide provides a record of administrative area boundary changes in England and Wales between the 1991 Census and the 2001 Census.
Further Information about the User Guide


ONS Postcode Directory (ONSPD)

'From the February 2011 release, the ONS Postcode Directory replaced the National Statistics Postcode Directory (NSPD). The ONSPD relates both current and terminated postcodes to a range of current statutory administrative, electoral, health and other geographies as well as some abolished and frozen geographies in the United Kingdom. The ONSPD is released quarterly'
Further Information about the ONSPD


Ordnance Survey

Ordnance Survey is the national mapping agency for Great Britain.
Further information see Ordnance Survey website.


Ordnance Survey of Northern Ireland (OSNI)

The Land & Property Services (LPS) in Northern Ireland has incorporated Ordnance Survey of Northern Ireland (OSNI) into it's organisation and produces mapping with the OSNI branding.
Further Information about LPS


Organisational Data Services (ODS)

The Organisational Data Services (ODS) supply the new codes for health geographies and organisation sites, such as hospitals and GP practices, in the United Kingdom. The ODS provide codes that are distributed to the wider NHS and loaded onto their IT systems, which in turn means that locations can be identified quickly and correctly.
Further Information about the ODS


OS MasterMap

OS MasterMap is Ordnance Survey's intelligent digital map of Great Britain. It contains a wide range of different layers of mapping data and is designed for use with geographic information systems (GIS) and database systems. OS MasterMap is the branded product of the Digital National Framework (DNF).
Further information see Ordnance Survey website.


Outer London

Outer London refers to the part of Greater London falling outside the boundaries of the former London County, which existed from 1889 to 1965. The Outer London area includes 19 of the London boroughs.
Further Information on London Boroughs


Output Area (OA)

Output Areas (OAs) are used across the UK as the base unit of census output. They were introduced in Scotland in 1991 and the rest of the UK in 2001. They superseded Census Enumeration Districts (EDs), although EDs are still used for census data collection.
Further information on the UK Census and census geography.

Content from the Office for National Statistics.
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