Technical writers have a very clear goal: explain the interface. That means they notice, instantly, when it’s inexplicable. If your interface is a confusing mess with overly-complicated procedures, buttons that make no sense, important options hidden in sub-menus and related options kept a mile apart, it’s not only hard to use – it’s hard to explain.

So if you, as the QA, are not sure about your UX – ask your technical writers. They know, and are quietly seething. And if you ask nicely, they’ll give you a well-worded document explaining just how bad it all is, saving you lots of work.