| Actor | The authenticated entity making a request — user, app, service, or super admin |
| Cart | A durable, headless working set of offerings with quantities and customizations |
| Cart Owner | A merchant who owns a cart/service provider account |
| Customer | An end-user who browses offerings and places orders |
| Fulfillment Type | How an order is delivered — PICKUP, DELIVERY, ON_LOCATION, HOME_SERVICE |
| Investment Opportunity | A merchant-published funding round with terms, returns, and risk |
| Investment | A backer's capital commitment to an opportunity |
| Offering | A sellable product or service in the catalog |
| Order | The single source of truth for a transaction, with status and payment status |
| Order Item | One line in an order — an offering + quantity + customizations |
| Payment Status | Independent financial state — PENDING, PAID, FAILED, REFUNDED |
| Review | Customer feedback (rating + text) tied to a merchant and order |
| Service Provider | Same as merchant — a seller on the platform |
| Task | A discrete fulfillment job assigned to a worker |
| Worker | A person who fulfills orders for a merchant |
| Workspace | The top-level tenant boundary in Burdenoff; all Kadaikodi data is workspace-scoped |