DAF — Section 7.1 P6 Figure 7-3

There is an shared aggregation between "System of Systems" and
"System".
This means that subordinate parts exists independently,
that is, Brake system (and other systems) are installed to another vehicle after
previous one is disposed (or destroyed).
This shared aggregation is inadequate.

The multiplicity of the figure is to be modified.

Reflecting the comment, we changed the shared aggregation to Association. Also, the multiplicity of System of Systems is to be modified from 0..1 to 0 .. * as attached.

For example, a smart house (system) is in cooperation with other smart houses to form a smart community (system of systems) as the whole. There would be a case that a smart house does not belong to a smart community but shares data from other smart community. In this case, the relationship between the smart house and the smart community cannot be expressed by shared aggregation, therefore we changed it to association.