This document summarizes key concepts related to eCommerce payment processing infrastructure. It outlines the components involved including cardholders, merchants, issuing banks, acquiring banks, processors, and payment associations. It describes the authorization, capture, and settlement phases of a transaction. It also discusses fraud prevention techniques like address verification and CVV numbers. The infrastructure uses components like IBM WebSphere Payment Manager, web and application servers, databases, and Java programming to facilitate transactions between merchants and cardholders over the internet.
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