How a dining-room POS models its data: floor plan tables and seats, open checks, courses and fire times, kitchen tickets routed per station, sold-out items, split checks, cashier shifts and tip-outs.
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.
How an online supermarket models its data: per-store catalogue and pricing, weight-priced items billed on what was actually picked, baskets, substitution preferences and real substitutions, picking tasks, capacity-limited delivery windows and inventory counts.
A local-first SQLite schema for a cooking app: recipes with quantified ingredients, units and ingredient-specific conversions, timed steps, meal plans by day, shopping lists that merge quantities across recipes, pantry stock and favourites.
How an in-store point of sale is modelled: stores and registers, cashier shifts with opening float and closing count, sales with discounted lines, multi-tender payment, returns against the original sale, drawer movements and approved price overrides.