The Open Payment Initiative, or O.P.I. for short, was launched by Wincor Nixdorf in 2003 to standardize the application interface between the electronic point of sale (EPOS) application and any cashless payments solution installed on the electronic funds transfer at point of sale (EFTPOS) payment terminal. The specification for this interface focused mainly on international and cross-industry aspects.
The Open Payment Initiative, or O.P.I. for short, was launched by Wincor Nixdorf in 2003 to standardize the application interface between the electronic point of sale (EPOS) application and any cashless payments solution installed on the electronic funds transfer at point of sale (EFTPOS) payment terminal. The specification for this interface focused mainly on international and cross-industry aspects.
Source: Wikipedia "Open Payment Initiative" · CC BY-SA 4.0
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