These are important aspects of this analysis technique, so I'll ask for comments from other participants.

Let's consider Theva's question 1: As Fishbone Analysis is a highly visual tool and enables complex analyses, how might those characteristics limit its use? As a clue, consider the following aspects: Workforce diversity; Urgency of the issue being examined; Limits of time and other resources to diagnose the problem.

And with question 2, as the techniques has no theoretical limits on the number of "branches" that the inquiry can take, what constraints could we apply to maintain focus and still ensure a good outcome?