Question
a.
Hierarchical structure in state charts divides the diagram into separate segments, while in STNs it is used within a single diagram.
b.
Hierarchical structure in state charts represents concurrent activity, while in STNs it represents sequential interactions.
c.
Hierarchical structure in state charts introduces multiple counters for concurrent states, while in STNs it involves separate diagrams.
d.
Hierarchical structure in state charts adds escape buttons, while in STNs it uses counters for transitions.
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