Write the state sequence before the bill of materials
Bull group, neighboring cattle, feed, water, inspection route and every normally closed opening.
Which gate changes state, who controls it and what prevents an unintended second opening.
Lane, destination, handler position, escape plan and the gates that must be secured first.
Where cattle can be held if the planned route, gate or receiving paddock is unavailable.
Do not turn this record into a materials request when an escape route, gate owner, receiving space or safe movement method is unresolved.

