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You’ve joined Shelf, a marketplace where many merchants sell the same things. The trapdoor: the word product means three things at once — the *thing* a review is about, the *configuration* that carries a barcode, and the *offer* one seller makes at one price. Collapse them and the first time two shops sell the same headphones you are storing the title, the description and the images twice — and the reviews scatter across the copies.
out of scopeBaskets and checkout · stock and warehouses · shipping · reviews · search ranking · promotions
pnpm dev:api and reload.The canvas below still works, so you can model now and run the review once the service is up.Practice studio
Start with the data model, then layer system context
Use entities and relationships for the real ERD. Add notes, containers, or curated cloud shapes only when they sharpen the story you are architecting.
This scenario runs a full workspace — editor, canvas and results side by side. It needs a laptop or desktop to be usable. Open this page on a bigger screen to start building.