| req-service-time | CS-1 | Service Time: The stand shall serve a coffee and a toasted sandwich within 4 minutes of the customer's payment being approved. | | covered |
| req-one-payment | CS-2 | One Payment: A single payment shall cover both items and produce one receipt itemising both. | | covered |
| req-no-early-provision | CS-3 | No Provision Before Payment: The stand shall not begin provisioning either item before payment approval is received from the purchasing terminal. | | covered |
| req-floor-clear | CS-4 | Floor Kept Clear: The stand shall keep the seated floor free of dropped cups throughout trading hours, not only at close. | | covered |