Delivery operations modelled properly: depots, drivers and shifts, vehicle capacity constraints, orders with time windows, routes planned per day, stops in planned and actual sequence, geofenced arrivals, failed attempts, proof of delivery and re-sequencing history.
A courier network schema built on an append-only scan log: shipments and the packages inside them, hubs and planned routes, scan events as the only truth, derived status, delivery attempts, exceptions, proof of delivery, and promised versus actual delivery.
How a vehicle fleet is modelled: vehicles and drivers, licence entitlements with expiry, assignment history, downsampled telematics and fault codes, maintenance due by mileage or date, work orders and parts, fuel, inspections and incidents.
A SQL Server schema for international freight: bookings and incoterms, shipments and container consolidation, multi-leg sea, air and road journeys, carrier rate contracts, customs declarations, milestone events, documents, charges and invoicing.
How returns are actually modelled: RMA authorisations and eligibility windows, versioned policies, return reasons, inbound inspection and grading, dispositions from restock to scrap, refunds against exchanges and store credit, labels, restocking fees and return-abuse signals.