Table 2: Unique property reference number (UPRN) match metadata.

Metadata field	Description
From ASSIGN:
Algorithm version	Version of algorithm used
Match date	Date match made
Qualifier	One of four match qualifiers: best match, child, parent, sibling
Match rule	Label identifying which section of code made the match
Match pattern	The combination of manipulation qualifiers used on each of the five address fields used to make the match
From ABP:
UPRN	Unique Property Reference Number, from ABP
Epoch	ABP Epoch used
Property classification	The property classification type, from ABP
x-coordinate	UPRN geographical easting coordinate, from ABP
y-coordinate	UPRN geographical northing coordinate, from ABP
latitude	UPRN geographical latitude coordinate, from ABP
longitude	UPRN geographical longitude coordinate, from ABP
ABP address	UPRN associated address string, from ABP

ABP = AddressBase Premium.