Retail data analytics must connect data from every channel and location: POS transactions from 200 stores, e-commerce clickstreams from millions of sessions, inventory snapshots across warehouses and sales floors, and customer profiles spanning loyalty, service, and marketing interactions. PCI-DSS compliance governs payment data handling. Seasonal peaks (Black Friday, holiday) demand elastic infrastructure.
Retail analytics spanning customer (segmentation, CLV, churn prediction), product (category performance, assortment optimization), operations (labor productivity, shrinkage), and marketing (campaign ROI, channel attribution) — each requiring POS and e-commerce data integration.