I'd argue, good (let's say) usability is about communicating the/a mental model via your interface. Is your interface up to it? Is the model stringent and conci

I'd argue, good (let's say) usability is about communicating the/a mental model via your interface. Is your interface up to it? Is the model stringent and concise enough to be communicated just by the arrangement of elements? It's a bit like world building. (That's what Apple used to be particularly good at, once. I'd also argue, software has become quite bad at this, recently.)