Having the same architecture problems over and over does give you perspective. We all love making fun of the enterprise FizzBuzz but there are cases where those Factories, Adapters and Facades are genuinely very useful, and so is dependency injection. Since I had to do dependency injection combined with adapters a wee many times now, it seems like a good idea to share my experience. What I will describe here mostly applies to Ruby, but it mostly applies to the other languages and runtimes too.
