About half the 5 Whys analyses I've seen at my company end up doing this anyway, because anyone paying attention realizes this immediately. It's pretty easy to

About half the 5 Whys analyses I've seen at my company end up doing this anyway, because anyone paying attention realizes this immediately. It's pretty easy to do a branching 5 Why analysis that branches off in different directions. It's not an orthodoxy, it's a tool and is so simple that it's easy to modify for your use cases.