How a ride-hailing app models its data: riders and drivers, vehicles and expiring documents, online sessions, ride requests, dispatch offers that time out, trips as a state machine, GPS pings, itemised fares with surge, and two-way ratings.
How a short-term rental marketplace models its data: hosts and listings, a host-owned per-night calendar, request-to-book versus instant book, reservations, guest payments and host payouts, and two-way reviews that only reveal once both sides have written.
A vehicle rental schema: branches, vehicle classes versus the individual cars behind them, a per-branch availability calendar, reservations and signed agreements, mileage and fuel, damage inspections with photos, protection add-ons and one-way fees.
How a food delivery marketplace models its data: restaurant menus built from reusable modifier groups, orders that snapshot every chosen option, courier dispatch offers, live location tracking, and the fee split between restaurant, courier and platform.
A reservation system that actually handles availability: room types versus rooms, rate plans, a per-night rate and inventory calendar, reservations broken down by night, payments and verified reviews.