Machines transmit a lot of data, but how and why do all of this if this is not compatible and comparable with each other? A common data format/data understanding is the prerequisite for users to understand the data of their heterogeneous machine pool correctly and to be able to use it with each other. This benefits not only the respective internal construction software, but also the use of the machines, as is clearly shown by the example of the attachments – the MiC 4.0 BUS. The user has a significant advantage in the use, operation and understanding of his construction machinery. The motto of the increasingly digital construction machines is: many machines – one digital language.