“At the beginning we emphasized that clear visualization was very important to us. If values are outside the predefined limits, that should be made clear to the operator immediately using colour codes. When anything is out of range, the operator also immediately receives a message saying that he must inform the shift leader. The paper photo book, which operators can use to look up where exactly on the machine a particular value is displayed, has also been digitalised in the app. As soon as the whole list has been completed, it is transmitted and stored in the cloud.”