4. The particular person in command of payment pays the invoice utilizing bank card, paypal charges for seller or bank transfer. 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 bank card transactions. In case you have come to this text, you may be an e-commerce enterprise owner or somebody who's considering of starting an e-commerce website. With the evolving digital world and frequent use of superior applied sciences, it's high time for every e-commerce enterprise owner to provide attention to information safety to guard buyer data in this aggressive world. Event-Driven Architecture: Use occasion queues (like Kafka) to process high volumes of information asynchronously.