Only available on Pro Business (added option) & Enterprise with Address Verification Edition


The accuracy code (v_AddressVerification Code) is made up of the following values:


  •  The verification status
  •  The post-processed verification match level
  •  The pre-processed verification match level
  •  The parsing status
  •  The lexicon identification match level
  •  The context identification match level



Example:



Verification Status

V        Verified                        A complete match was made between the input data and a single record from the available reference data

P        Partially Verified                A partial match was made between the input data and a single record from the available reference data

U        Unverified                Unable to verify. The output fields will contain the input data

A        Ambiguous                More than one close reference data match

C        Conflict                        MoRecord could not be verified to the specified minimum acceptable level

R        Reverted                The output fields will contain the input datare than one close reference data match with conflicting values        



Post-Processed Verification Match Level

The post-processed verification match level gives the level to which the input data matches the available reference data once all changes and additions performed during the verification process have been taken into account.


5         Delivery Point (PostBox or SubBuilding)

4         Premise (Premise or Building)

3         Thoroughfare

2         Locality

1         AdministrativeArea

0         None



Pre-Processed Verification Match Level

The pre-processed verification match level gives the level to which the input data matches the available reference data prior to any changes or additions performed during the verification process


5         Delivery Point (PostBox or SubBuilding)

4        Premise (Premise or Building)

3        Thoroughfare

2        Locality

1        AdministrativeArea

0         None 



Parsing Status

I          Identified and Parsed        All input data has been able to be identified and placed into components

U          Unable to parse                Not all input data has been able to be identified and parsed



Lexicon Identification Match Level

The lexicon identification match level gives the level to which the output data has some recognized form, through the use of pattern matching (e.g. a numeric value could be a premise number) and lexicon matching (e.g. ‘rd’ could be a ThoroughfareType, ‘Road’; ‘London’ could be a Locality)


5         Delivery Point (PostBox or SubBuilding)

4        Premise (Premise or Building)

3        Thoroughfare

2        Locality

1        AdministrativeArea

0         None 



Context Identification Match Level

The context identification match level gives the level to which the output data can be recognized based on the context in which it appears. This is the least accurate form of matching and is based on identifying a word as, for instance, a Thoroughfare based on it being preceded by something that could be a Premise, and followed by something that could be a Locality, the latter items being identified through a match against the reference data or

the lexicon.


5         Delivery Point (PostBox or SubBuilding)

4        Premise (Premise or Building)

3        Thoroughfare

2        Locality

1        AdministrativeArea

0         None 



Postcode Status

P8        PostalCodePrimary and PostalCodeSecondary  verified

P7        PostalCodePrimary verified,  PostalCodeSecondary added or changed

P6        PostalCodePrimary verified

P5         PostalCodePrimary verified with small change

P4         PostalCodePrimary verified with large change

P3         PostalCodePrimary added

P2         PostalCodePrimary identified by lexicon

P1         PostalCodePrimary identified by context

P0         PostalCodePrimary empty


Context Identification Match Level

The matchscore indicates how much the input data has been changed during the verification process in order to achieve thepost-processed verification match level. 100% means no changes have been made. Data additions are not measured by the matchscore, only changes. Generally a matchscore of 95 or above indicates only a character or two have been changed during the process. If the input data is less clean a threshold of 80 might be considered, since significantly larger changes to the input data will then be allowed. Please note that this value gives no indication of the level of verification, that is given by the postprocessed verification match level.