Which of the following are the heuristics for the State diagram?
(a) Avoid concurrent composite states, especially those with synch states
(b) Designate an initial state in every concurrent region of a concurrent composite state
(c) Check that transitions to several concurrent sub-states go through a fork
(d) All of the mentioned
I have been asked this question in an internship interview.
The doubt is from Advanced UML State diagrams topic in section Unified Modelling Language of Software Architecture