4. The person in charge of payment pays the invoice utilizing bank card, paypal business transaction fee or financial institution switch. Four Airport Security Statement Credit. PCI means Payment Card Industry, which is a should-have for every e-commerce enterprise proprietor who deals with 1000's of orders and bank card transactions. You probably have come to this article, you could also be an e-commerce business proprietor or someone who's considering of starting an e-commerce website. With the evolving digital world and frequent use of advanced technologies, it's high time for each e-commerce enterprise proprietor to present attention to data security to guard buyer information in this competitive world. Event-Driven Architecture: Use event queues (like Kafka) to process excessive volumes of knowledge asynchronously.