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Data Models for a Payments Engine 
An Access Database is available on demand.
Third Party Payment Engines include American Express, Apple Pay, Foxy Cart, Oracle Payments, PayPal, World Pay
Wikipedia has a couple of interesting entries for Payments and Electronic Bill Payments

Conceptual Data Model

Conceptual Data Model 		Logical Data Model (ERD)

ERD Data Model


Barry Williams
Principal Consultant
Database Answers Ltd.
London, England
July 18th. 2017


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