3. Address Hygiene
Address hygiene involves cleansing, standardizing, and validating address information. Hygiene may also involve internationalization to handle multiple languages and character sets. The standardization process involves the following steps:
Components, such as street names and attributes, are corrected and put in official, standardized formats. For example, the term “Lane” might be changed to the standardized abbreviation “LN”. An abbreviation for Connecticut that is sometimes used is Conn., however, it would be standardized to “CT” for all Connecticut records. Potentially fake and vulgar names are flagged. Identifies common problem phrases in the name or address fields, such as phrases like “Do Not Mail” and “Unknown” in multiple languages.
Validation involves comparing a parsed address with official records and making corrections. Best practice would be to perform the following operations:
- Determine or validate the country
- Match to Postcode Address File (PAF) reference data for the specific country, which includes officially licensed sources such as the country’s postal authority, other government agencies, and third parties.
- Correct standardized identified components
- Append/insert missing components
While licensed and up-to-date PAF data may cost more than other sources, they can vastly improve accuracy and quality. It is a good idea to ask vendors whether they use officially licensed sources.
Global-Z’s proprietary Address Quality Code is assigned to every address processed. The code indicates the accuracy of the address, specifies whether or not the address could be corrected, and classifies the address as either deliverable, undeliverable or uncorrectable. This allows for pinpoint accuracy in determining which addresses can be successfully delivered to your prospects.
Internationalization makes it possible to compare records entered in different character sets. Global-Z covers more than 20 languages and nine character sets, including Traditional and Simplified Chinese, Cyrillic, Greek, Japanese, Korean, and Western European (Roman/Latin). Global-Z can combine local language and Western-character lists in the same merge/purge, allowing for duplicate removal across different list types. Also, Global-Z can localize address spellings, formats, and diacritics or accent characters, giving your lists greater consistency and accuracy.
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