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One-to-one is

[c]omparing one biometric reference to another biometric reference to identify a biometric subject.[1]


One-to-one refers to the business movement during Web 1.0 which leveraged database technology for targeting products, ads, and services to specific users with particular profile attributes. Amazon is a classic example of a company that performs "One-to-One Marketing" by offering users targeted offers and related products. Personalization is the term that later followed as a way of describing this evolution in Internet marketing.


One-to-one is the act of an individual communicating with another individual. The early Internet applications of e-mail, FTP and Telnet are characterized as "one-to-one," because they are primarily communication means from one individual (or computer) to another. Most one-to-one communication on the Internet today is instant messaging.


  1. Biometrics Identity Management Agency, Biometrics Glossary, at 30 (Ver. 5) (Oct. 2010) (full-text).

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