You’ve joined Cadence, a music streaming service. Two problems that look alike and are not. Playlists are an ordering problem — the same track is third in one and ninetieth in another. Royalties are a money problem: a play is worth different amounts by country, tier and holder, and a rate renegotiated tonight must not restate a statement a label has already been paid against.
out of scopeRecommendation · search · social · offline downloads · ad serving · the payment run
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.