AddressBase structure

AddressBase is structured as a flat file. The data structure in this document is described by means of Unified Modeling Language (UML) class diagrams.

The AddressBase product is constructed as per the following UML diagrams.

Model overview CSV

High level data model representing the address feature (CSV).

AddressBase CSV

Definition: This address record follows the lifecycle of a Postcode Address File (PAF) record matched to a Local Authority record. As a matched record is inserted, deleted and updated within PAF, these changes are incorporated into the AddressBase product. Similarly, if the matched Local Authority address record updates an attribute contained within the AddressBase product, this change will be reflected.

The UML model of AddressBase in CSV format can be seen in the UML diagram below; classes from the Ordnance Survey product specification are coloured orange; all code lists are coloured blue, while enumerations are coloured green.

UML model of AddressBase in CSV format

UML model showing AddressBase feature types, enumerations and code lists for the CSV supply.

Model overview GML

High level data model representing the address relationships (GML).

AddressBase GML

Definition: This address record follows the lifecycle of a Postcode Address File (PAF) record matched to a Local Authority record. As a matched record is inserted, deleted and updated within PAF, these changes are incorporated into the AddressBase product. Similarly, if the matched Local Authority address record updates an attribute contained within the AddressBase product, this change will be reflected.

The UML model of AddressBase in GML format can be seen in the diagram below. In the UML diagram, classes from the Ordnance Survey product specification are orange, all code lists are coloured blue and enumerations are green.

UML model of AddressBase in GML format

UML model showing AddressBase feature types, enumerations and code lists for the GML supply.