4. The person answerable for fee pays the invoice utilizing bank card, PayPal or bank switch. 4 Airport Security Statement Credit. PCI means Payment Card Industry, which is a should-have for every e-commerce business proprietor who deals with thousands of orders and credit card transactions. If in case you have come to this text, you could also be an e-commerce business proprietor or someone who is considering of beginning an e-commerce webpage. With the evolving digital world and frequent use of advanced applied sciences, it's high time for every e-commerce business proprietor to give consideration to knowledge security to guard customer data on this competitive world. Event-Driven Architecture: Use event queues (like Kafka) to course of excessive volumes of data asynchronously.