| Cashier | Fullscreen POS UI (/point-of-sale/*) on Vendor Desktop |
| Vendor Desktop | Electron POS app on the lane PC (index-cashier.html shell) |
| Lane / register | Checkout position (pos_register_id) |
| Work shift | Open–close cashier session with cash counts |
| Draft | Unfinalized order; may not decrement stock |
| Outbox | Desktop queue of place-order payloads awaiting sync |
| Code128 barcode | Invoice barcode on receipts from client_order_id |
| Bridge | WebSocket between Vendor Desktop and server for ECR |
| Wedge scanner | USB scanner acting as keyboard input |
| Bootstrap | POS workspace initial data (GET …/bootstrap) |