Field test
Put numbered tape marks on the floor. For each mark, measure x: the distance along the wall from the centre of the entrance board (right is positive, as you face the board), and z: the distance straight out from the wall. Then, during a guided visit, the evaluator taps the matching checkpoint button in the guidance app when the visitor's phone is over the mark.
Checkpoints
| Mark | x (m) | z (m) |
|---|