4. The individual in charge of cost pays the bill using bank card, PayPal or bank transfer. 4 Airport Security Statement Credit. PCI means Payment Card Industry, which is a must-have for every e-commerce business proprietor who offers with hundreds of orders and bank card transactions. In case you have come to this text, you may be an e-commerce business owner or somebody who's considering of beginning an e-commerce website. With the evolving digital world and frequent use of superior applied sciences, it is excessive time for every e-commerce business proprietor to provide consideration to knowledge safety to guard customer knowledge on this aggressive world. Event-Driven Architecture: Use occasion queues (like Kafka) to process excessive volumes of data asynchronously.