Order Management System ER diagram models a complete e-commerce fulfillment workflow with Cliente, Pedido, Producto, Repartidor, Pago, and Historial_Estado_Pedido entities connected via foreign keys. Data flows from customer orders through delivery assignments, payment processing, and order status tracking, with Detalle_Pedido bridging products to orders. This normalized schema eliminates redundancy, enforces referential integrity, and supports complex queries across customers, shipments, and payment reconciliation. Fork this diagram on Diagrams.so to customize tables, add indexes, or adapt for your order management platform. The crow's foot notation clearly shows one-to-many relationships critical for scaling multi-vendor or multi-warehouse operations.