Deployment and operation
Acceptance criteria
Function
Every task type runs; the upper-system interface works; every safety function is effective.
Accuracy
Navigation, parking and docking accuracy, each measured at defined points.
Success rate
Docking success rate and task completion rate.
Cycle
Time per task per machine, and system throughput.
Stability
Exceptions over a period of continuous running, and mean time between failures.
Acceptance criteria should be measurable numbers written into the technical agreement; each item is tested at acceptance and the test data handed over on the day. The preconditions belong in writing too: modifications complete, network to specification, carriers compliant and third-party interfaces available, and what happens to acceptance if they are not.