Bad Layering - Wide Awake Developers

If I had to guess, I would say that "Layers" is probably the most commonly applied architecture pattern. And why not? Parfaits have layers, and who doesn't like a parfait? So layers must be good. Like everything else, though, there's a good way and a bad way. The usual Neapolitan stack looks like this: On one of my favorite projects of all, we used more layers because we wanted to further isolate different behaviors.