BTFV refers to business technology for fashion value chain. It includes software used across the fashion industry supply chain from product marketing, customer interactions, transactions, and fulfillment. BTFV helps optimize processes from attracting visitors to completing customer transactions and orders. It addresses issues like low conversion rates, cart abandonment, and poor customer service. The case study discusses how a fashion retailer uses solutions like Magento, PayPal, Unicommerce, Tally, and Exotel as part of their BTFV implementation to streamline operations and improve the customer experience.