Everyone is talking about “process reliability”: media, trade associations, universities and chambers of commerce – even local politics have jumped on the “Industry 4.0” bandwagon. Industry 4.0 stands for the fourth industrial revolution. In recent years, the internet has established itself as the communication medium per se. Mails, whether business or private, are sent via web, vehicles are located via satellite and thus via internet – the delivery status is always visible. And even gravel can already be ordered online.