| req-cook-temperature | ST-1 | Cooking Temperature: The toaster shall bring both plates to 180 C within 180 seconds of switch-on. | | covered |
| req-seal-and-cut | ST-2 | Seal and Cut: The toaster shall seal the sandwich around its perimeter and cut it into two triangular halves in a single closing action. | - satisfy: Lower Heating Plate
| covered |
| req-thermal-safety | ST-3 | Thermal Safety: The toaster shall remove power from the heating elements if the plate temperature exceeds 240 C. | | covered |
| req-non-stick | ST-4 | Release: The plates shall release the sandwich without tearing the bread after a 5 minute cook. | - satisfy: Upper Heating Plate
| covered |
| req-standby | ST-5 | Standby: The toaster shall enter a low-power standby state after 10 minutes without operation. | | covered |