Data object is an ArchiMate concept that on the one hand can be linked to a number of ArchiMate concepts so that aspects such as quality, requirements. But also where is the dataset used and by whom, which application has a relation with this dataset etc.
If necessary, you could link to the infrastructure from the data object. At this moment, this is not yet chosen in this example. As soon as there is a need in the community for this, this will be worked out further