Statechart and Activity Chart Relation Checks : (C7213) Elements affected by the statechart that are neither used nor output

(C7213) Elements affected by the statechart that are neither used nor output

Error In:
Completeness
Description:
Elements are affected (modified or generated in actions) by the statechart, but they are neither specified as output of the control activity nor used in the statechart.
Erroneous Elements:
Events, conditions, and data-items