For definitions, see Question 1.
Validation of address information: translation and transliteration to a foreign language
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1. http://blog.icann.org/2014/03/a-model-for-exploring-whois-accuracy/
by margie Margie Milam
2. the WHOIS Accuracy Program Specification part of the 2013 Registrar Accreditation Agreement:
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3. the Status update report from the EWG on gTLD Directory Services:
www.icann.org/en/groups/other/gtld-directory-services/status-update-11nov13-en.pdf p.22-30