[Interaction Use:011]: Interaction Use graphical location and other fragments.

The Interaction use is present only once in the list of fragments of the interaction or interaction operand, but its graphical location in the diagram occupy much larger area that affect other fragments, and to some extends introduce constraints on the semantical order, especially when gates are used, which attach to the left or right-hand side of the interaction use.

No fragment can overlap with the Interaction use, that include fragments on lifelines that are not covered by the interaction use, but it is located between two covered lifelines.